Answer:
the tank can hold 12.5 gallons when it is full
Step-by-step explanation:
Let's assume
tank can hold 'x' gallons when it is full
we are given
The gas gauge in a car shows it has 40% of a tank of gas
So, gas in car is
[tex]=\frac{40}{100}\times x[/tex]
and we have
the car has about 5 gallons
so, we can set it equal
and then we can solve for x
[tex]5=\frac{40}{100}\times x[/tex]
[tex]5=\frac{4}{10}\times x[/tex]
[tex]5=\frac{2}{5}\times x[/tex]
Multiply both sides 5
[tex]5\times 5=5\times \frac{2}{5}\times x[/tex]
[tex]5\times 5=2x[/tex]
[tex]25=2x[/tex]
we get
[tex]x=12.5[/tex]
So, the tank can hold 12.5 gallons when it is full
Answer:
B
Step-by-step explanation:
I really need Help Please!!!!!!!!
ABCD is a parallelogram. If side AB = 10x - 15, side BC = 5x + 7, and side CD = 6x + 9, find the value of x.
x=____
Answer:
x=6
Step-by-step explanation:
If ABCD is a parallelogram, then AB = CD
AB=CD
10x-15 = 6x+9
Subtract 6x from each side
10x-6x -15 = 6x-6x+9
4x-15 = 9
Add 15 to each side
4x-15+15 = 9+15
4x = 24
Divide by 4 on each side
4x/4 =24/4
x=6
Look at the picture.
The equation:
10x - 15 = 6x + 9 add 15 to both sides
10x = 6x + 24 subtract 6x from both sides
4x = 24 divide both sides by 4
x = 6help me
important
thanks ppl
Answer:
A
Step-by-step explanation:
Your first step is to figure out what f(x) is. You should start with x = 0. f(x) has a value of - 4. That only tells you that whatever x is or what it is coupled with, the constant term is - 4.
What you know so far is that y = x something - 4
Now go to work on some of the other numbers. It really doesn't look linear so don't try it.
What happens when x = 16? Somehow f(x) winds up being 0. What can cause that?
First of all it can't be y = ax - 4. We've already establish the constant must be - 4
What about y = ax^2 - 4
That cannot be either. y = 16^2*a - 4 ?? y = 256ax - 4. No other value will fit the bill.
By looking at g(x) you get the idea that y = a*sqrt(x) - 4 might have something to do with f(x). The most obvious value for a = 1, so try it first.
y = sqrt(x) - 4y = sqrt(16) - 4y = 4 - 4 = 0Looking good!!Now try some of the other values.
x = 9y = sqrt(9) - 4y = 3 - 4y = -1And that's what the table says.
The red graph is y = sqrt(x) - 4
The blue graph is y = 4*sqrt(x) - 8
Answer
It looks like A is the answer.
g(x) has a y intercept of - 8
f(x) has a y intercept of - 4
==============
The two intercepts are not equal. If they were they would start from the same point. B is incorrect
==============
C is wrong. the x intercepts are distinct points. One is 4 and the other is 16 I think.
0 = sqrt(x) - 4
4 = sqrt(x) Square both sides.
16 = x This is the x intercept of the red line
The other intercept = 4 (Blue line). I'll leave you to work it out. Leave a not if you can't.
========================
A and D can't both be true. Since A is true, D can't be.
Small balloons cost 95 cents each and large balloons cost $1.45 each.
Let x represent the number of small balloons
Let y represent the number of large balloons
Shelby has $15 to spend on balloons
She needs at least 3 large balloons.
0.95x+1.45y≥15
0.95x+1.45y≤15
y≥3
y≤3
x≥0
In this problem, it is determined that Shelby can buy up to 11 small balloons and at least 3 large balloons with her $15 budget. Seven distinct combinations of small (x) and large (y) balloons are possible given the constraints x ≤ 11, y ≥ 3, and the total cost not exceeding $15.
Explanation:Based on the information provided, we're dealing with inequalities and trying to determine how many small and large balloons Shelby can purchase with a budget of $15. Since Shelby needs at least 3 large balloons, we know y ≥ 3. Considering the remaining money for the small balloons, and given that small balloons cost $0.95, the maximum number (x) can be obtained by subtracting the cost for 3 large balloons from the total budget and dividing the remainder by the cost of a small balloon. Let's calculate it: $15 - $4.35 ($1.45 x 3 for large balloons) = $10.65. Then, $10.65 / $0.95 ≈ 11. Thus, x ≤ 11.
The outcome of the calculations thus suggests the possible pairs (x,y) for purchasing balloons are in such a way that Shelby can purchase up to 11 small balloons and needs at least 3 large balloons. Hence, 0.95x + 1.45y ≤ 15, with the constraints x ≤ 11 and y ≥ 3. Seven distinct combinations of small (x) and large (y) balloons are possible given these restrictions.
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Two questions. Ten points.
Answer:
2. 9
3.12 p^4 - 1/2 p^3 -8p^2 + 2p
Step-by-step explanation:
The degree of the polynomial is found by taking the number of the highest exponent. We add the exponent when there is more than one variable in a term
5m^6n^3 = degree (6+3) = 9
3m^4n^2 = degree (4+2) = 6
So the polynomial is degree 9
Standard from is written from largest exponent to smallest exponent
12 p^4 - 1/2 p^3 -8p^2 + 2p
A 2 liter bottle is filled completely with water from a faucet in 10 seconds. How much water was filled into the bottle each second?
Answer:
A 0.2 L water was filled into the bottle from faucet each seconds.
Step-by-step explanation:
Unit rate is defined as the rates are expressed as a quantity of 1, such as 3 feet per second or 6 miles per hour, they are called unit rates.
Given the statement: A 2 liter bottle is filled completely with water from a faucet in 10 seconds.
⇒ In 10 sec a 2L bottle is completely filled with water from a faucet.
Unit rate per second = [tex]\frac{2}{10} = \frac{1}{5} = 0.2 L[/tex]
Therefore, 0.2 L water was filled into the bottle each seconds.
Answer:
0.2
Step-by-step explanation:
Which input value produces the same output value for the two functions on the graph?
X= -3
X= -1
X= 1
X= 3
Answer:
X=3
Step-by-step explanation:
We have two linear functions which intersect at a point. Linear functions are lines which are made of points that satisfy the function or relationship. This means at the intersection, this point (3,-1), both functions have values. An input of x=3 produces y=-1 in both functions.
The input value is [tex]\boxed{x = 3}.[/tex] Option (d) is correct.
Further explanation:
The output values of the function are known as range and the input values on which function is defined is known as the domain of the function.
Given:
The options are as follows,
(a). [tex]x = - 3[/tex]
(b). [tex]x = -1[/tex]
(c). [tex]x = 1[/tex]
(d). [tex]x = 3[/tex]
Explanation:
The functions are [tex]f\left( x \right){\text{ and }}g\left( x \right).[/tex]
It has been observed from the graph that the line of the functions [tex]f\left( x \right){\text{ and }}g\left( x \right)[/tex] intersects each other at [tex]x = 3.[/tex]
The input value is [tex]\boxed{x = 3}[/tex]. Option (d) is correct.
Option (a) is not correct.
Option (b) is not correct.
Option (d) is not correct.
Option (d) is correct.
Learn more:
If the clothing maker bought 500 m2 of this fabric, how much money did he lose? use 1tepiz=0.625dollar and 0.9144m=1yard https://brainly.com/question/2479097. Suppose that you find the volume of all the oceans to be 1.4×109km3 in a reference book. to find the mass, you can use the density of water, also found in this reference book, but first you must convert the volume to cubic meters. What is this volume in cubic meters? https://brainly.com/question/1446243.Answer details:
Grade: High School
Subject: Mathematics
Chapter: Relation and Function
Keywords: relations, functions, all relation are functions, all functions are relations, no relations are functions, no functions are relation, one-to-one, onto, graph representation, paired, y-value, x-values, origin.
what is the perimeter of triangle with side lengths of 29, 15, and 4xy?
Answer:
P =44 + 4xy
Step-by-step explanation:
To find the perimeter of a triangle, add up the three sides
P = 29+15+4xy
P =44 + 4xy
Write an equivalent expression to 2x + 3 + 5x + 6 by combining like terms then use x=3 to show expressions are equivalent
Answer:
7x + 9
Yes they are equivalent
Step-by-step explanation:
The first expression given to us is
2x + 3 + 5x + 6
Let us call it equation (i)
Now we have to find equivalent expression to it
the given equation is 2x + 3 + 5x +6
similar terms are terms involving x and not involving x
so solving the equation gives
2x + 5x + 3 +6
= 7x + 9
Now we have two equations one is
2x + 3 +5x + 6 ...............(i)
Other is
7x + 9 ..............(ii)
To check they are equivalent or not
Put x = 3 in equation (i)
2(3)+3+5(3)+6= 6 + 3 + 15 + 6
=30
Now put x=3 in second equation
7(3)+9=21 + 9
=30
As the answer of both the equations are 30 so they are equivalent
To write an equivalent expression to 2x + 3 + 5x + 6 by combining like terms, the expression can be simplified to 7x + 9. Substituting x with 3 in both expressions shows that they have the same value, which is 30.
Explanation:To write an equivalent expression to 2x + 3 + 5x + 6 by combining like terms, we add the coefficients of the like terms. In this case, the like terms are the terms with the same variable, which is x. So, 2x + 3 + 5x + 6 simplifies to 7x + 9. To show that this expression is equivalent to the original expression, we can substitute x with 3. So, when we replace x with 3, both expressions 2x + 3 + 5x + 6 and 7x + 9 result in the same value, which is 30.
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six thousand,six hundred forty_one dollars and forty cent in standard form
The answer is: 6,641.40$
Explanation:
Six thousand= 6,000
Six hundred= 600
Forty one= 41
Forty cents: .40
Now add all of these together:
6,000
+ 600
+ 41
+ 0.40
Which will give you 6,641.40$
I hope this helps! :)
-LizzyIsTheQueen
Help w/ Geometry!!
Here is a geometrical statement: All squares are rectangles
Write the statement in if-then form:
What is the hypothesis of the statement?
What is the conclusion of the statement?
Answer:
If the shape is a square,then it is a rectangle.
Step-by-step explanation:
The hypothesis of the statement is the one which follows after if,
If the shape is a square.
The conclusion of the statement is the sentence that follows after then,
Then it is a rectangle.
The statement 'All squares are rectangles' translates into an if-then form as 'If a shape is a square, then it is a rectangle'. The hypothesis is 'a shape is a square' and the conclusion is 'it is a rectangle'.
Explanation:
The geometrical statement 'All squares are rectangles' can be translated into an if-then form as follows: 'If a shape is a square, then it is a rectangle'. In this statement, the hypothesis is 'a shape is a square' and the conclusion is 'it is a rectangle'. This means that if we start with a shape and it happens to be a square (which is our condition or hypothesis), then it must also necessarily be a rectangle (which is our end result or conclusion). This is because all the properties of a rectangle - having all angles being 90 degrees and opposite sides being equal - are also properties of a square.
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Pls help! Urgent! Brainliest promised!
The triangles below are similar.
Which similarity statements describe the relationship between the two triangles?
CHECK ALL THAT APPLY!!!!!!
Answer: choices B, C, D and E
B) triangle RSP is similar to triangle ZXY
C) triangle SRP is similar to triangle XZY
D) triangle PSR is similar to triangle YXZ
E) triangle RPS is similar to triangle ZYX
In short, the answers is nearly everything but the first and last answer choice
================================================
For the first triangle, angle S is 54 degrees. In the other triangle, angle X is also 54 degrees. This means that the two angles correspond as they are equal to one another. The answer will have the letters S and X show up in the same position, whether that position is the first, second or third place of the three letter sequence.
Choice A is not one of the answers. RPS ~ XYZ is false because of what I mentioned above. We see that S is shown last in RPS while X is shown first in XYZ. The letters S and X do not correspond together, so we can cross choice A off the list.
Choice B is one of the answers because we have R corresponding to Z (first letters of each sequence RSP and ZXY; both are 41 degrees) and we have S correspond to X, and we have P correspond to Y (both the same measure as well)
Choice C is another answer for similar reasons as choice B. The only difference is that R and S have swapped, so have X and Z. The order is important or else things wouldn't line up properly.
Choice D is another answer. Again we have the same correspondence of P to Y (both in the first slot), S to X (second slot), and R to Z (third slot). For each slot, the pair of angles are both the same measure.
Choice E is another answer. Similar reasons as before, just a different order.
Choice F is not one of the answers. We see that P and Z occupy the second slots, but they aren't congruent angles.
Answer:
2,3,4,5 u-u welcome child
Step-by-step explanation:
What is the domain and range of the function
Answer:
Option d is correct.
Domain = all real number
range = positive real numbers
Step-by-step explanation:
Given the function: [tex]y=f(x) = a^x[/tex]
Domain of the function is all real numbers except where the expression is undefined.
In this case, there is no real number that makes the expression undefined.
Domain of f(x) = [tex](-\infty , \infty)[/tex] = {a | a∈R}
Range is the set of all valid f(x) values.
[tex](0,1) \cup (1, \infty)[/tex]
[tex]\{y | y\neq 1 , y>0\}[/tex]
Therefore, Domain is all real number and the range of function is positive real number
Identify the hypothesis and conclusion of this conditional statement: If two lines intersect at right angles, then the two lines are perpendicular. a Hypothesis: The two lines are perpendicular. Conclusion: Two lines intersect at right angles. b Hypothesis: Two lines intersect at right angles. Conclusion: The two lines are perpendicular. c Hypothesis: The two lines are not perpendicular. Conclusion: Two lines intersect at right angles. d Hypothesis: Two lines intersect at right angles. Conclusion: The two lines are not perpendicular.
Answer: b
Step-by-step explanation:
NOTE:
Hypothesis: "if" part of the sentenceConclusion: "then" part of the sentencehypothesis : If two lines intersect at right angles
conclusion: then the two lines are perpendicular
If 30 gumballs can be purchased for 3 dollars, write a function that represents the cost in cents of ‘d' dozen gumballs.
Answer:
The function that represents the cost in cents of ‘d' dozen gumballs is y = 10d .
Step-by-step explanation:
As given
If 30 gumballs can be purchased for 3 dollars .
i.e
30 gumballs = $3
Now find out the cost of one gumballs .
[tex]1\ gumballs = \$ \frac{3}{30}[/tex]
[tex]1\ gumballs = \$ \frac{1}{10}[/tex]
[tex]1\ gumballs = \$\ 0.1[/tex]
As 1 dollar = 100 cents
[tex]1\ gumballs = 0.1\times 100\ cents[/tex]
[tex]1\ gumballs = \frac{1\times 100}{10} \ cents[/tex]
1 gumballs = 10 cents
Thus the cost of one gumball is 10 cents .
As d = dozen gumballs.
Let us assume that the cost for ‘d' dozen gumballs = y
Than the function becomes
y = 10d
Therefore the function that represents the cost in cents of ‘d' dozen gumballs is y = 10d .
The triangles are similar. The area of the larger triangle is 200 cm².
What is the area of the smaller triangle?
12.5 cm²
50 cm²
100 cm²
200 cm²
Answer:
The correct answer option is 12.5 cm[tex]^2[/tex].
Step-by-step explanation:
We are given two triangles that are similar with one of the corresponding sides with known values.
The ratio of the corresponding sides of the smaller triangle to the larger triangle is [tex]\frac{16}{64} =\frac{1}{4}[/tex]. So the ratio between the areas of these triangles will be [tex]\frac{1}{4^2} =\frac{1}{16}[/tex].
If the area of the larger triangle is 200 cm[tex]^{2}[/tex] then the area of the smaller triangle will be = [tex]\frac{1}{16} *200=12.5[/tex].
Therefore, the area of the smaller triangle is 12.25 cm[tex]^2[/tex].
Formula to find Area of a triangle is
A=(height×base)/2
base of bigger triangle is=64cm^2
base of smaller triangle is=16cm^2
Area of bigger triangle is =200cmCm^2
area of smaller triangle=?
we imagine
height = base
then area of bigger trianglewillbe=64*64/2=2048
and area of smallertriangle will be=16*16/2==128
but we are given thatarea of bigger triangle is 200
when we divide 2048/10
it approximately gives 200
similarly when we divide 128/10
it approximately gives 12.5cm^2
hence area of smaller triangle is 12.5cm^2
Tickets to a show cost different for seniors, children, and adults. Adult tickets are twice as much as senior tickets. Two senior tickets plus one children's ticket cost $17. Two children tickets plus one adult ticket cost $24. How much does one senior ticket cost? A) $5 B) $7 C) $9 D) $10
Answer:
The senior's ticket cost is A, $5.
Step-by-step explanation:
say a children's ticket was $7; 7 + 7 + 14
so if an adult ticket is twice as much, let's say it was $10 per adult ticket.
one adult ticket plus two children's tickets would be $24 with these numbers.
two seniors ($5) + one children's ticket ($7) would be $17
therefore, we can conclude that a senior's ticket would cost $5
8*5&1/2 please help i need this
Answer:
44
Step-by-step explanation:
8 * 5 1/2 =
8/1 * 11/2 =
88/2 =
44
Answer:
44
Step-by-step explanation:
HOPE THIS HELPS!
Determine the maximum numbers of zeros of the polynomial function 3x^4-x^2+1
A. 4
B. 3
C. 1
D. 2
Answer: A. 4
The largest exponent in the polynomial tells us the max number of roots, x intercepts, or zeroes of the function. In this case, that happens to be 4. This is the degree of the polynomial. It is considered a quartic polynomial. It is also a trinomial since it has 3 terms (3x^4, x^2 and 1)
Answer:
ITs A
Step-by-step explanation:
The highest degree is 4 ( 3x^4) so the maximum number of zeroes is 4.
A new mountain bike is on sale for 260.00, which is 35% off of is original price. What is the original price of the bike
Answer:g hvt
Step-by-step explanation:
Help please, and explain.
Answer: 2x + y
Step-by-step explanation:
logₐ(3) = x
logₐ(5) = y
logₐ(45) = logₐ(3²· 5)
= logₐ(3)² + logₐ(5)
= 2 logₐ(3) + logₐ(5)
= 2 x + y substituted given values (stated above)
Step-by-step explanation:
Here we make use of the laws of logarithms:
log_a(PQ) = log_a(P)+log_a(Q)
which implies the following corollary
log_a(P^2) = log_a(P)+log_a(P) = 2log_a(P)
Notice how the log of a product is reduced to the sum of the log of the factors. (Advantage is taken of this fact in the use of logarithm tables before the wide-spread use of electronic calculators (pre-70's) )
So substituting
x=log_a(3)
y=log_a(5)
we have
log_a(45) = log_a(3^2 * 5) = log_a(3^2) + log_a(5)=2log_a(3)+log_a(5)
=2x+y
When George purchased a new car, he paid a 4% sales tax. The amount of sales tax he paid was $840.
What was the total cost of the car including the sales tax?
Enter your answer in the box.
Answer:
I would say your answer is $873.60
Step-by-step explanation:
$840.00
Tax (4%)
$33.60
Gross Amount (including tax)
$873.60
sorry if im wrong
A bag contains eight blue marbles six red marbles and four green marbles what is the probability of selecting a red marble replacing it in the bag then selecting a green marble
Answer: [tex]\frac{2}{27}[/tex]
Step-by-step explanation:
blue = 8 , red = 6 , green = 4 , total = 18
red and green
[tex]\frac{6}{18}[/tex] x [tex]\frac{4}{18}[/tex]
= [tex]\frac{1}{3}[/tex] x [tex]\frac{2}{9}[/tex]
= [tex]\frac{2}{27}[/tex]
Find the values of m and b that make the following function differentiable.
the piecewise function f of x equals x squared when x is less than or equal to three or mx plus b when x is greater than three
For [tex]f[/tex] to be differentiable, it must be continuous, so we need to have
[tex]\displaystyle\lim_{x\to3^-}f(x)=\lim_{x\to3^+}f(x)=f(3)[/tex]
By its definition, [tex]f(3)=3^2=9[/tex]. The one-sided limits are
[tex]\displaystyle\lim_{x\to3^-}f(x)=\lim_{x\to3}x^2=9[/tex]
[tex]\displaystyle\lim_{x\to3^+}f(x)=\lim_{x\to3}mx+b=3m+b[/tex]
so we require [tex]3m+b=9[/tex].
In order for [tex]f[/tex] to be differentiable at [tex]x=3[/tex], we also need to have [tex]f'(3)[/tex] exist, which requires that [tex]f'[/tex] also be continuous at [tex]x=3[/tex]. First, compute the derivatives of all pieces of [tex]f[/tex]:
[tex]f'(x)=\begin{cases}2x&\text{for }x<3\\?&\text{for }x=3\\m&\text{for }x>3\end{cases}[/tex]
[tex]f'[/tex] is continuous at [tex]x=3[/tex] if
[tex]\displaystyle\lim_{x\to3^-}f'(x)=\lim_{x\to3^+}f'(x)=f'(3)[/tex]
The one-side limits are
[tex]\displaystyle\lim_{x\to3^-}f'(x)=\lim_{x\to3}2x=6[/tex]
[tex]\displaystyle\lim_{x\to3^+}f'(x)=\lim_{x\to3}m=m[/tex]
so we need to have [tex]m=6[/tex], and moreover [tex]f[/tex] will be differentiable if we set [tex]f'(3)=6[/tex].
So with [tex]m=6[/tex], we must have [tex]3m+b=9\implies b=-9[/tex].
For the piecewise function f(x) = x^2 when x <= 3 and mx + b when x > 3, values m = 6 and b = -9 ensure differentiability at x = 3.
To make the piecewise function f(x) differentiable at x = 3, we need the two pieces, x^2 and mx + b, to smoothly connect at x = 3. This requires the values of m and b to ensure continuity of both function values and derivatives.
First, evaluate both pieces at x = 3:
x^2 when x <= 3 and mx + b when x > 3
For continuity, set these expressions equal to each other:
3^2 = m * 3 + b
This yields 9 = 3m + b. To ensure differentiability, the derivatives of both pieces must also match at x = 3:
f'(x) = 2x when x <= 3 and f'(x) = m when x > 3
For continuity of derivatives, set the derivatives equal to each other at x = 3:
2 * 3 = m
This gives m = 6. Substituting m = 6 into the continuity equation 9 = 3m + b gives b = -9.
Therefore, the values m = 6 and b = -9 make the piecewise function f(x) differentiable at x = 3.
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Meliza has 43 toys soldiers , she line them up 5 to fight imaginary zombies . How many of these row can she make? After making as many as two of 5 as she can , she put the remaining soldiers in the last row. How many soldiers are in that row
Answer:
A. 8 rows.
B. 3 toy soldiers.
Step-by-step explanation:
We are told that Meliza has 43 toys soldiers, she line them up 5 to fight imaginary zombies .
A. Let us find the greatest multiple of 5 from 43.
Multiples of 5 are: 5,10, 15, 20, 25, 30, 35, 40, 45,..
We can see the greatest multiple of 5 from 43 is 40.
Let us divide 40 by 5 to find the number of rows that Meliza can make.
[tex]\text{Number of rows with 5 soldiers in each row}=\frac{40}{5}=8[/tex]
Therefore, Meliza can make 8 rows of 5 from 43 toy soldiers.
B. To find the number of soldier in last row we will subtract 40 from 43.
[tex]\text{Number of toy soldier in last row}=43-40=3[/tex]
Therefore, the number of toy soldiers in last row will be 3 soldiers.
1. Write the expression in simplified radical form. Show your work.
3-2 square root 11/ 2+ square root 11
2. Solve the equation. Show your check then write the solution set.
x - 1 = square root 6x + 10
Score for Question 3: ___ of 6 points)
3. Given the complex number, 5 − 3i:
(a) Graph the complex number in the complex plane.
(b) Calculate the modulus. When necessary, round to the tenths place.
Answer:
Answer:
1) 3
2) {x = 9 or x = -1}
3) (b) The modulus of the complex number 5-3i is [tex]\sqrt{34}[/tex]
Step-by-step explanation:
Problem 1
3 - 2 [tex]\frac{\sqrt{11} }{2} + \sqrt{11}[/tex]
i) Cancelling out the 2's from the top and bottom of the middle term, we get
3 - [tex]\sqrt{11} + \sqrt{11}[/tex]
ii) Cancelling out -[tex]\sqrt{11}[/tex] and +[tex]\sqrt{11}[/tex], we get
3 as the simplified form
Problem 2
x-1 = [tex]\sqrt{6x+10}[/tex]
Our first goal is to get rid off the radical on the right side
i) Squaring both sides, we get
[tex](x-1)^{2}[/tex]=[tex](\sqrt{6x+10})^{2}[/tex]
ii) (x-1)*(x-1) = 6x+10
iii) Applying the distributive property (a+b)(c+d) = ac+ad+bc+bd to the left side of the equation, we get
(x)(x)+(x)(-1)+(-1)(x)+(-1)(-1) = 6x+10
=> [tex]x^{2}[/tex]-x-x+1 = 6x+10
=> [tex]x^{2}[/tex]-2x+1 = 6x+10
iv) Subtract 6x from both sides, we get
[tex]x^{2}[/tex]-2x+1-6x = 6x+10-6x
v) Cancelling out 6x and -6x from the right side, we get
[tex]x^{2}[/tex]-2x-6x+1 = 10
=> [tex]x^{2}[/tex]-8x+1 = 10
vi) Subtracting 10 from both the sides, we get
[tex]x^{2}[/tex]-8x+1-10 = 10-10
vii) Cancelling out 10 and 10 from the right side, we have
[tex]x^{2}[/tex]-8x-10+1 = 0
=> 1[tex]x^{2}[/tex]-8x-9 = 0
viii) Coefficient of the first term = 1
Multiplying the coefficient of the first term and the last term, we get
1*(-9) = -9
We need to find out two such factors of -9 which when added should give the middle term -8
So, -9 and +1 are the two factors of -9 which when added gives us the middle term -8
ix) Rewriting the middle term, we get
[tex]x^{2}[/tex]-9x+x-9 = 0
x) Factoring out x from the first two terms and factoring out 1 from the last two terms, we get
x(x-9)+1(x-9)=0
xi) Factoring out x-9 from both the terms, we get
(x-9)(x+1)=0
xii) Either x-9=0 or x+1=0
xiii) Solving x-9=0, we get x=9
xiv) Solving x+1=0, we get x= -1
So, solution set {x = 9 or x = -1}
Problem 3
5 − 3i
a) In order to graph the complex number 5-3i, we need to move right by 5 units on the real axis and then move down by 3 units on the imaginary axis.
See figure attached
b) A complex number is in the form of z= a+ bi
i) Comparing 5-3i with a+bi, we get a=5 and b = -3
The modulus is given by
|z| = [tex]\sqrt{a^{2}+b^{2} }[/tex]
ii) Plugging in a=5 and b=-3, we get
|z| = [tex]\sqrt{5^{2}+(-3)^{2} }[/tex]
iii) |z| = [tex]\sqrt{25+9} [/tex]
iv) |z| = [tex]\sqrt{34}[/tex]
The modulus of the complex number 5-3i is [tex]\sqrt{34}[/tex]
Nick currently has 7,200 points in his fantasy baseball league, which is 20% points than Adam. How many points does Adam have?
Adam has 6,000 points.
Explanation:Let's use algebra to solve this problem. Let's assume that Adam's points are represented by 'x'. According to the problem, Nick has 20% more points than Adam, so Nick's points can be represented as 'x + 20% of x' or '1.2x'. Given that Nick has 7,200 points, we can set up the equation 1.2x = 7,200 and solve for 'x'. Divide both sides of the equation by 1.2 to isolate 'x' and find that Adam has 6,000 points.
Learn more about Fantasy baseball points here:https://brainly.com/question/13520575
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Which statement accurately describes the two congruent triangles? Triangles B A E and B C D where point B is an apex of both triangles. Line segments A B and B C are the same length, line segments C D and A E are the same length, and line segments B E and B D are the same length. Angles A E B and B D C have the same measurement, angles D C B and B A E have the same measurement, and angles A B E and C B D have the same measurement. Question 1 options: triangle A B E is congruent to triangle B C D triangle E A B is congruent to triangle D B C triangle A B E is congruent to triangle C B D triangle A E B is congruent to triangle C B D
Answer:
Triangle ABE is congruent to triangle CBD.
Step-by-step explanation:
Given two congruent triangles BAE and BCD where B is an apex of both triangles.
Given AB=BC, CD=AE, BE=BD
& also ∠AEB=∠BDC, ∠DCB=∠BAE, ∠ABE=∠CBD
By CPCT i.e. Corresponding parts of corresponding triangles
Correspondimg sides and angles area in the same position or spot in two different triangles.
Hence, Triangle ABE is congruent to triangle CBD.
A certain star is 1.135 × 10^14 km away from Earth. If light travels at 9.4607 × 10^12 km per year, how long will it take for light from the star to reach Earth?
Answer:
12 years will it take for light from the star to reach Earth.
Step-by-step explanation:
As per the given statement: A certain star is 1.135 × 10^14 km away from Earth. If light travels at 9.4607 × 10^12 km per year.
⇒Speed of light travel = [tex]9.4607 \times 10^{12}[/tex] km per year
and Distance of a certain star from the Earth = [tex]1.135 \times 10^{14}[/tex] km
To find how long will it take for light from the star to reach Earth.
Using Formula:
[tex]\text{Speed} = \frac{\text{Distance}}{\text{Time}}[/tex]
or
[tex]\text{Time} = \frac{\text{Distance}}{\text{Speed}}[/tex]
Substitute the given values we have;;
[tex]\text{Time} = \frac{1.135 \times 10^{14}}{9.4607 \times 10^{12}}[/tex]
Simplify:
Time = 11.9969981 year ≈ 12 years
therefore, 12 years will it take for light from the star to reach Earth.
Several students joined a radio-controlled model club. Some had boats, some had airplanes, and some had cars. They divided into three equal groups according to which radio-controlled model each had. Another 10 students joined the radio-controlled airplane group. There are now 15 students in this group. How many students joined the radio-controlled model club in the beginning?
Answer:
15 students joined the radio-controlled model club
Step-by-step explanation:
The students joining the radio-controlled model club were divided into three equal groups i.e
a) Radio-controlled boat group
b) Radio-controlled car group
c) Radio-controlled airplane group
10 new students joined the Radio-controlled airplane group and the new sum of students in this group is 15.
This implies that there were 5 students in Radio-controlled airplane group before the joining of 10 new students.
In the starting, the three groups have equal number of students which means that Radio-controlled boat group, Radio-controlled car group, Radio-controlled airplane group have 5 students in each group. Thus, In the beginning there were total 15 students who joined the radio-controlled model club
Real estate values in a town are increasing at a rate of 14% per year. Mrs. Knoxville purchased a building for $590,000 in 2012.
How much can she expect to sell the building for in 2020, assuming this trend continues?
Enter your answer in the box. Round to the nearest whole dollar.
Answer:
$1808263
Step-by-step explanation:
We're given with the below information:-
Initial price of the building = Principal amount (P) = $590000
Rate of interest (r) = 14% = 0.14
Time in years (t) = 2020 - 2012 = 8
The formula to calculate the final amount where interest is continuously compounded each year is :-
[tex]A = Pe^{rt}[/tex] [e is the mathematical const = 2.71828]
Plugging in the values of P, e, r, and t in the above formula, we get
[tex]A = 590000*2.71828^{0.14*8}[/tex]
=> A= 1808262.6
=> A = $1808263 (rounded off to the nearest whole dollar)
So, she expect to sell the building in 2020 for an amount of $1808263
Answer:\
180000
Step-by-step explanatii took