Answer:
25x^2
Step-by-step explanation:
Linear or Non - Linear
Answer:
linear
Step-by-step explanation:
This graph is linear
find the area of a trapezoid with base 1 side = 10 base 2 side = 16 and 3
Answer:
Area of Trapezoid is 39 unit²
Step-by-step explanation:
Given as :
For A Trapezoid
The measure of base side 1 = [tex]b_1[/tex] = 10 unit
The measure of base side 2 = [tex]b_2[/tex] = 16 unit
The height of the Trapezoid = h = 3 unit
Let The Area of Trapezoid = A square unit
Now, From Formula
Area of Trapezoid = [tex]\dfrac{1}{2}[/tex] × (sum of opposite base) × height
I.e A = [tex]\dfrac{1}{2}[/tex] × ([tex]b_1[/tex] + [tex]b_2[/tex]) × h
Or, A = [tex]\dfrac{1}{2}[/tex] × (10 unit + 16 unit) × 3 unit
Or, A = [tex]\dfrac{1}{2}[/tex] × (26 unit) × 3 unit
Or, A = [tex]\dfrac{1}{2}[/tex] × 78 unit²
Or, A = [tex]\dfrac{78}{2}[/tex] unit²
I.e A = 39 unit²
So, The Area of Trapezoid = A = 39 unit²
Hence, The Area of Trapezoid is 39 unit² . Answer
if two angles of a triangle are complementary find the number of degrees in the third angle of the triangle
Answer:
The measure of the third angle is a 90 degrees
Step-by-step explanation:
Let
A and B ----> two complementary angles in a triangle
C ---> the measure of the third angle in a triangle
we know that
If two angles are complementary, then their sum is equal to 90 degrees
so
[tex]A+B=90^o[/tex] ---> equation A
Remember that
The sum of the interior angles in any triangle must be equal to 180 degrees
so
[tex]A+B+C=180^o[/tex] ----> equation B
substitute equation A in equation B
[tex](90^o)+C=180^o[/tex]
solve for C
subtract 90 degrees both sides
[tex]C=180^o-90^o[/tex]
[tex]C=90^o[/tex]
therefore
we have a right triangle
A farmer in China discovers a mammal hide that contains 37% of its original amount of C-14. Find the age of the mammal hide to the nearest year.
Answer: 54678 years
Step-by-step explanation:
This can be solved by the following equation:
[tex]N_{t}=N_{o}e^{-\lambda t}[/tex] (1)
Where:
[tex]N_{t}=54\%=0.54[/tex] is the quantity of atoms of carbon-14 left after time [tex]t[/tex]
[tex]N_{o}=1[/tex] is the initial quantity of atoms of C-14 in the mammal hide
[tex]\lambda[/tex] is the rate constant for carbon-14 radioactive decay
[tex]t[/tex] is the time elapsed
On the other hand, [tex]\lambda[/tex] has a relation with the half life [tex]h[/tex] of the C-14, which is [tex]5730 years[/tex]:
[tex]\lambda=\frac{ln(2)}{h}=\frac{ln(2)}{5730 years}=1.21(10)^{-4} years^{-1}=0.000121 years^{-1}[/tex] (2)
Substituting (2) in (1):
[tex]0.54=1e^{-(0.000121 years^{-1}) t}[/tex] (3)
Applying natural logarithm on both sides of the equation:
[tex]ln(0.54)=ln(1e^{-(0.000121 years^{-1}) t})[/tex] (4)
[tex]-0.616=-(0.000121 years^{-1}) t[/tex] (5)
Isolating [tex]t[/tex]:
[tex]t=\frac{-0.616}{-0.000121 years^{-1}}[/tex] (6)
[tex]t=54677.68 years \approx 54678 years[/tex] (7) This is the age of the mammal hide
The age of the mammal hide to the nearest year is approximately 11,239 years.
To find the age of the mammal hide with 37% of its original amount of C-14 remaining, we can use the decay formula for a substance undergoing exponential decay, which is described by the equation N(t) = N0(1/2)t/T, where N(t) is the remaining amount of substance, N0 is the original amount of substance, t is the time that has elapsed, and T is the half-life of the substance.
In this case, the half-life of C-14 is 5,730 years. Since we know the remaining amount of C-14 is 37% of the original amount, we can set up the equation 0.37 = (1/2)t/5730. To solve for t, we take the natural logarithm of both sides:
ln(0.37) = ln((1/2)t/5730)
ln(0.37) = (t/5730) * ln(1/2)
t = (ln(0.37)/ln(1/2)) * 5730
When we compute the value for t, we get the age of the mammal hide. By performing this calculation, we find that t is approximately 11,239 years. This is the estimated age of the mammal hide to the nearest year.
Corresponding sides of similar triangles are
A opposite
B proportional
C equals
Select the correct answer.
A baseball is thrown into the air from the top of a 224-foot tall building. The baseball's approximate height over time can be represented by the quadratic equation h(t) = -16t2 + 80t + 224, where t represents the time in seconds that the baseball has been in the air and h(t) represents the baseball's height in feet. When factored, this equation is h(t) = -16(t - 7)(t + 2).
What is a reasonable time for it to take the baseball to land on the ground?
A.
7 seconds
B.
2 seconds
C.
9 seconds
D.
5 seconds
Answer:The reasonable time for the base ball to land on the ground is 5 seconds
Step-by-step explanation:
To get the time we will differentiate
h(t) = -16t2 + 80t + 224, w.r.t t
dh(t)/dt= 0
-32t +80=0
32t=80
t=80/32
t= 2.5 seconds This is the time the base ball has been in the air
The reasonable time for it to take the baseball to land on the ground is T= 2×t
T= 2×2.5
T=5 seconds
A sofa and a love seat together cost $1500. The sofa costs double the love seat. How much do they each cost?
Answer:
I think its 500 each or its Love seat=500. Sofa=1000
Step-by-step explanation:
For 500 you would do 1500/3 because sofa is double+love seat. So each would cost 500 if you divide it by 3. So the sofa would be 1000. The love seat would be 500. 1000+500=1500.
Hope this helps!!
Final answer:
To determine the cost of the sofa and love seat, we create an equation from the given information. Solving for x, we find that the love seat costs $500 and the sofa, costing double, is $1000.
Explanation:
To solve the problem in question, let's call the cost of the love seat x. According to the information given, the sofa costs double the love seat, so the sofa's cost will be 2x. Together, the sofa and love seat cost $1500, which gives us the equation:
x + 2x = $1500
Combining like terms, we get:
3x = $1500
To find the value of x, we divide both sides of the equation by 3:
x = $1500 / 3
x = $500
This means the love seat costs $500. To find the cost of the sofa, we multiply the cost of the love seat by 2:
2x = 2 * $500
2x = $1000
Therefore, the sofa costs $1000, and the love seat costs $500.
Factorise 1 - 25 (a+b)^2
Answer:
Step-by-step explanation:
1 - 25 (a+b)^2 = 1 - 5² (a+b)²
= 1 - (5*[a + b) ]² { [tex]a^{m} *a^{n} = a^{m+n}[/tex] }
= 1 - (5a +5b)²
= (1 + 5a +5b) (1 - [5a + 5b]) { a² - b² = (a + b)(a - b) }
=(1 + 5a +5b) (1- 5a - 5b)
An experimental vehicle is able to travel 3/8 mile on 1/16 gallon of water. What is the rate at which the vehicle can travel, in miles per gallon of water?
The rate at which the vehicle can travel is 6 miles per gallon
Solution:
Given that experimental vehicle is able to travel [tex]\frac{3}{8}[/tex] mile on [tex]\frac{1}{16}[/tex] gallon of water
To find: Rate at which the vehicle can travel, in miles per gallon of water
distance traveled in miles = [tex]\frac{3}{8} \text{ miles }[/tex]
gallon of water = [tex]\frac{1}{16} \text{ gallons }[/tex]
Miles per gallon is given as:
[tex]\text{ miles per gallon }=\frac{\text{ distance traveled in miles}}{\text{gallon of water }}[/tex]
Substituting the given value we get,
[tex]\rightarrow \frac{\frac{3}{8}}{\frac{1}{16}}\\\\\rightarrow \frac{3}{8} \times \frac{16}{1}\\\\\rightarrow 3 \times 2 = 6[/tex]
So the rate at which the vehicle can travel, in miles per gallon of water is 6 miles per gallon
A bicycle store costs $3850 per month to operate. The store pays an average of $45 per bike. The average selling price of each bicycle is $155. How many bicycles must the store sell each month to break even?
155-45=110
3850÷110=385 bicycles
Answer:
35
Step-by-step explanation:
3850/(155-45)
3850/110
35
Hope this helps and please follow me ;)
the measure of an angle and it’s supplement are given. Determine the measures of the two angles
Answer:
The sum of any two supplementary angles is 180⁰. If you have been given a task to that one angle measures 120⁰ and have to find its supplement, you will compute as ⇒ 180⁰ - 120⁰ = 60⁰. So, the missing will be 60⁰.
Step-by-step explanation:
As we know that the sum of any two supplementary angles is 180⁰.If we have to get the supplement, all we need is to subtract a given angle from 180.A straight line measure 180⁰.If you have been given a task to that one angle measures 120⁰ and have to find its supplement, you will compute as ⇒ 180⁰ - 120⁰ = 60⁰. So, the missing will be 60⁰.Let us consider the m∠MON = 45⁰, as shown in figure a. As straight line measure 180⁰, and the sum of any two supplementary angles is 180⁰. So, 180⁰ - 45⁰ = 135⁰ ⇒ m∠MOL = 135⁰.
So, the supplement of m∠MON = 45⁰ is m∠MOL = 135⁰.
Keywords: supplementary angle, angle measure
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Idk how to do this. Someone please help. This is a Geometry Honors class
Answer:
4.0
Step-by-step explanation:
AB / AC = AE / AD
1 / 4.5 = AE / 18
4.5 AE = 18
AE = 4.0
Since BE and CD are parallel, triangles ABE and ACD are similar, meaning their side lengths are proportional.
AC = AB + BC = 1 + 3.5 = 4.5
The proportion of AB to AC (corresponding sides of two similar triangles) is 1 / 4.5
Let x be the variable that represents the unknown length of AE
The proportion of AE to AD (another set of corresponding sides of two similar triangles) is x / 18
Since the triangles are similar, these two proportions must be equal.
1 / 4.5 = x / 18
Cross multiply
4.5x = 18
Divide both side by 4.5
x = 4
The length of AE is 4, no need to round since the answer is already a whole number.
Let me know if you need any clarifications, thanks!
Dere me pest answer for the question.
14. 20 is what percent of 50?
O A. 30%
OB. 10%
O C.40%
D.250%
Mark for review (Will be highlighted on the review page)
Answer:
C : 40%
Step-by-step explanation:
20 ÷ 50 = 0.40 also to solve just divide the smaller number from the greater number in order to be able to get the correct percentage.
Answer:
Step-by-step explanation
is / of = % / 100.....proportion formula
20 is what percent of 50...
20 / 50 = x / 100
cross multiply
50x = 2000
x = 2000/50
x = 40.......so 20 is 40% of 50
3 x 1/3 divided by 2 x 3 to the second power
Answer:
1/36
Step-by-step explanation:
3(1/3)=3/3=1
2*3=6
(1/6)^2=(1/6)(1/6)=1/36
A family has a net income of $ 3100 per month and an entertainment budget of $ 399 per month. What percentage of their monthly income is spent on
entertainment?
% of their monthly income is spent on entertainment. (give your answer to the nearest 0.1 %).
Answer:
12.87%
Step-by-step explanation:
To identify the % of their monthly income is spent on entertainment we use following formula
Total Budget of Entertainment / Total Net Income
$399/$3,100*100
12.87%
The job paid $25 for every 2 hours of work. Write an equation that represents how much the job pays, y, for x hours of work.
We know that we can use y for "how much the job pays" and x for "hours of work."
Let's find how much the job pays in 1 hour by dividing.
25 / 2 = $12.5 per hour
We can mulitply x to 12.5 because this shows how much he earned.
An equation will look like 12.5x = y
Best of Luck!
The job pays $12.50 per hour. The equation to represent the pay, y, for x hours of work is 'y = 12.5x', which depicts direct proportionality.
Explanation:To solve this question, you must first understand that the job pays $25 for every 2 hours worked. Therefore, to find out how much the job pays for x hours of work, you'd simply multiply the rate per hour ($12.50, since $25 divided by 2 is $12.50) by x hours.
The equation that represents how much the job pays, y, for x hours of work is: y = 12.5x.
Here, 'y' denotes the total payment received and 'x' is the number of hours worked. This format is commonly used in equations representing direct proportionality, where one variable (in this case, pay) changes directly as the other (hours worked).
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The coordinates of the vertices of quadrilateral ABCD are A(-5, 1), B(-2,5), C(5, 3),
and D(2, -1)
Drag and drop the choices into each box to correctly complete the sentences.
The slope of AB is
the slope of BC is
, the slope of CD is
and the
slope of AD is!
Quadrilateral ABCD is
because
Answer:
The slope of AB is [tex]\frac{4}{3}[/tex], the slope of BC is [tex]- \frac{2}{7}[/tex], the slope of CD is [tex]\frac{4}{3}[/tex], and the slope of AD is [tex]- \frac{2}{7}[/tex], Quadrilateral ABCD is a parallelogram because both pair of opposite sides are parallel.
Step-by-step explanation:
The quadrilateral ABCD has vertices A(-5,1), B(-2,5), C(5,3) and D(2,-1).
Now, slope of line AB = [tex]\frac{5 - 1}{- 2 - ( - 5)} = \frac{4}{3}[/tex]
Slope of line BC = [tex]\frac{3 - 5}{5 - (- 2)} = - \frac{2}{7}[/tex]
Slope of line CD = [tex]\frac{- 1 - 3}{2 - 5} = \frac{4}{3}[/tex]
And slope of DA = [tex]\frac{1 - ( - 1)}{- 5 - 2} = -\frac{2}{7}[/tex]
Therefore, the slope of AB is [tex]\frac{4}{3}[/tex], the slope of BC is [tex]- \frac{2}{7}[/tex], the slope of CD is [tex]\frac{4}{3}[/tex], and the slope of AD is [tex]- \frac{2}{7}[/tex], Quadrilateral ABCD is a parallelogram because both pair of opposite sides are parallel. (Answer)
Answer:
The slope of AB is 4/3, the slope of BC is -2/7, the slope of CD is 4/3, and the slope of AD is -2/7. Quadrilateral ABCD is a parallelogram because both pairs of opposite sides are parallel.
Step-by-step explanation:
Write an equation of the line passing through point P that is perpendicular to the given line. P(4,−3), y=−x−5
Answer:
all work is shown and pictured
The combined height of one fir tree and one pine tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree. How tall are the types of trees?
The fir trees are 9 meters tall and the pine trees are 12 meters tall
Solution:
Let f be the height of one fir tree
Let p be the height of one pine tree
Given that combined height of one fir tree and one pine tree is 21 meters
So we get,
height of one fir tree + height of one pine tree = 21
f + p = 21 ----- eqn 1
Also given that height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree
height of 4 fir trees stacked on top of each other = 24 + height of one pine tree
4f = 24 + p ---- eqn 2
Let us solve eqn 1 and eqn 2 to find values of "f and "p"
From eqn 1,
f = 21 - p ----- eqn 3
Substitute eqn 3 in eqn 2
4(21 - p) = 24 + p
84 - 4p = 24 + p
-4p - p = 24 - 84
-5p = - 60
p = 12Substitute p = 12 in eqn 3
f = 21 - 12 = 9
f = 9Summarizing the results:
height of one fir tree = 9 meters
height of one pine tree = 12 meters
Quadrilateral ABCD is translated up and to the right, and then
rotated about point Q. Which congruency statement is
correct?
ABCD = WXYZ
ABCD = ZYXW
ABCD WZYX
ABCD = ZWXY
When a triangle is translated, the resulting triangle will be congruent to the original triangle.
The congruency statement is ABCD = ZYXW
From the complete question, corresponding points are:
Point A and point ZPoint B and point YPoint C and point XPoint D and point WThis means that:
Points A and Z are correspondingPoints B and Y are correspondingPoints C and X are correspondingPoints D and W are correspondingHence, the congruency statement is ABCD = ZYXW
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What is the equation of the following graph in vertex form?
y = (x − 3)^2 − 1
y = (x + 3)^2 − 1
y = (x − 4)^2 − 2
y = (x − 4)^2 + 8
============================================
How I got that answer:
The vertex is the lowest point of parabolas that open upward.
(h,k) = vertex
(h,k) = (-3,-1)
h = -3
k = -1
For each of the answer choices, a = 1.
The general template of a quadratic in vertex form is
y = a(x-h)^2 + k
Plug a = 1, h = -3, k = -1 into that equation. Simplify.
y = a(x-h)^2 + k
y = 1(x-(-3))^2 + (-1)
y = (x+3)^2 - 1
The vertex form of a quadratic equation is y = a(x - h)² + k, where (h,k) is the vertex of the parabola. The provided equations have vertices at different points. You must match the vertex of your graph with the correct equation.
Explanation:In order to find the equation of the graph in vertex form, we need to locate the vertex on the graph. The vertex form of a quadratic equation is y = a(x - h)² + k, where (h,k) is the vertex of the parabola.
Considering the options provided:
y = (x − 3)² − 1: The vertex is at (3, -1)y = (x + 3)² − 1: The vertex is at (-3, -1)y = (x − 4)² − 2: The vertex is at (4, -2)y = (x − 4)² + 8: The vertex is at (4, 8)However, without a graph or specific vertex provided, we won't be able to define the equation of the graph precisely in vertex form. You need to match the vertex of your graph to one of the above options.
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Linear programming subjected to constraints
Answer:
The maximum value of C is 14
Step-by-step explanation:
we have the following constraints
[tex]x\geq 0[/tex] ----> constraint A
[tex]y\geq 0[/tex] ---> constraint B
[tex]2x+2y\leq 10[/tex] ---> constraint C
[tex]3x+y\leq 9[/tex] ---> constraint D
Determine the area of the feasible region using a graphing tool
see the attached figure
The vertices of the feasible region are
[tex](0,0),(0,5),(2,3),(3,0)[/tex]
To find out the maximum value of the objective function C, substitute the value of x and the value of y of each vertices in the objective function an then compare the results
we have
[tex]C=4x+2y[/tex]
For (0,0) ----> [tex]C=4(0)+2(0)=0[/tex]
For (0,5) ----> [tex]C=4(0)+2(5)=10[/tex]
For (2,3) ----> [tex]C=4(2)+2(3)=14[/tex]
For (3,0) ----> [tex]C=4(3)+2(0)=12[/tex]
therefore
The maximum value of C is 14
Which equation represents the line that passes through the points (-3,7) and (3,3)
Answer:
The equation of the line is 2 x +3 y = 15.
Step-by-step explanation:
Here the given points are ( -3, 7) & ( 3, 3) -
Equation of a line whose points are given such that
[tex]x_{1}, y_{1}[/tex] ) & ( [tex]x_{2}, y_{2}[/tex] )-
y - [tex]y_{1}[/tex] = [tex]\frac{ y_{2} - y_{1} }{ x_{2} - x_{1} }[/tex] ( x - [tex]x_{1}[/tex] )
i.e. y - 7= [tex]\frac{3 - 7}{3 - (-3)}[/tex] ( x- (-3))
y - 7 = [tex]\frac{-4}{3 + 3}[/tex] ( x + 3 )
y - 7= [tex]- \frac{2}{3}[/tex] ( x + 3 )
3 ( y - 7) = - 2 ( x + 3)
3 y -21 = -2 x - 6
2 x + 3 y = 21 - 6
2 x + 3 y = 15
Hence the equation of the required line whose passes trough the points ( - 3, 7) & ( 3, 3) is 2 x + 3 y = 15.
How do I round up one number ow do I round up one numder
Well, when your rounding by ones, if the ones place is lower than 5, round lower. Like for example, 4 is lower than 5. So if you have 5,784, you have to round that 4 down to a 0. So it would be 5,780.
if it's higher that 5, like 7, you round up. Like for example, 507, you round it to 10, so 510.
Rounding up numbers involves looking at the digit to be dropped: if it's 5 or above, round up the last retained digit. Several examples like 31.57 up to 32 and 8.1649 down to 8.16 illustrate this process.
Explanation:Rounding up a number involves several steps. Let's take a few examples:
(a) The number 31.57 rounds up to 32. Here, the dropped digit is 5, and the digit we keep or retain is even. Since our dropped digit is 5 or higher, we add one to the retained digit, thus getting 32.
(b) The number 8.1649 rounds down to 8.16. The dropped digit is 4, which is less than 5, so we do not add any to our retained number, getting 8.16.
These examples demonstrate that we are rounding to the nearest whole number or to certain decimal places depending on the precision needed in the problem. When the digit we are dropping is 5 or above, we round up the previous digit. If it is less than 5, we leave the previous digit as it is.
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Select the equation of the line that passes through the point (–2, –1) and has slope 5 in point-slope form. a (y + 1) = 5(x + 2) b (x + 2) = 5(y – 1) c (y – 1) = 5(x – 2) d (x – 2) = 5(y + 1)
Answer:
y+1=5(x+2)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-1)=5(x-(-2))
y+1=5(x+2)
twice the difference of a number and 8 is less than -20
Answer:
2(x-8) < -20
Step-by-step explanation:
Answer:
x = a number
2(x - 8) < -20
A bicycle store costs $3600 per month to operate. The store pays an average of $75 per bike. The average selling price of each bicycle is $115. How many bicycles must the store sell each month to break
even?
The store must sell bicycles each month to break even.
(Type a whole number.)
I am not sure if i understand that 3600 is the cost of all the bikes they have bought in total, but they would have to sell 31 bikes to break even.
Find the length of line segment GF
right triangle E F G; angle G is a right angle; side EF has a length of 9 point 4; side EG has a length of 6 point 8
Final answer:
To find the length of line segment GF in a right triangle EFG, you can use the Pythagorean theorem. Plug in the given values of the lengths of the legs EF and EG, and solve the equation to find the length of GF.
Explanation:
To find the length of line segment GF in a right triangle EFG, you can use the Pythagorean theorem. According to the Pythagorean theorem, the sum of the squares of the two legs of a right triangle is equal to the square of the hypotenuse. In this case, the hypotenuse is line segment GF. Let's label the length of EF as x, and the length of EG as y.
Using the Pythagorean theorem, we can set up the following equation: x^2 + y^2 = GF^2.
Plugging in the given values, x = 9.4 and y = 6.8, we get: 9.4^2 + 6.8^2 = GF^2. Solving this equation will give us the length of line segment GF.
Evaluate n+13 for n=24
Answer: 37
Step-by-step explanation:
if n=24
n+13 becomes 24+13
24+13 = 37
The value of the expression is 37.
ExpressionAn expression in mathematics is a set of numbers, variables, and functions (such as addition, subtraction, multiplication or division etc.)
How to evaluate an expression?Given the expression n+13
Substitute the value of n the given expression.
24+13 = 37
Hence the value is 37.
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What is 3 to the power of three halves equal to?
Answer: The answer is 5.2 (rounded to the nearest tenth)
Actual Answer: 5.19615242
Hope this helps!
Answer:
its the square root of 27 to the power of 2
Step-by-step explanation: hope this helps