Answer:
-3x
Step-by-step explanation:
-3x( 7x2 - x +4)
When we distribute, the term on the outside of the parentheses is distributed ( multiplied) to the terms on the inside of the parentheses
-3x* 7x^2 -3x*-x -3x+4
-21x^3 +3x^2 -12x
Explain one way a geometric function is similar to an exponential function
Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.
Roger and Evelyn decided to shoot arrows at a simple target with a large outer ring and a smaller bull's-eye. Roger went first and landed 2 arrows in the outer ring and 5 arrows in the bull's-eye, for a total of 416 points. Evelyn went second and got 2 arrows in the outer ring and 1 arrow in the bull's-eye, earning a total of 112 points. How many points is each region of the target worth?
The outer ring is worth __ points, and the bull's-eye is worth __ points.
Answer:
outer region= 18pts, bulls eye=76pts
Step-by-step explanation:
its a system of equations
What is the y-intercept of the parabola, y=25/4x^2+10x?
Answer:
0
Step-by-step explanation:
To get the y-intercept ,all you have to do is to substitute x by 0 in the equation y=25/4x²+10x and find the value of y .
y = 25/4(0)²+10(0)
= 0 + 0
= 0
Classes start at 8:30 a.m. at Lee's school. It takes him 15 minutes to ride his bike to school, but he likes to arrive 20 minutes early. What time should he leave home?
Answer:
maybe 7:55
Step-by-step explanation:
if he leaves at 7:55 then he gets to school at 8:10 which he is 20 minutes early for school
Answer:
7:55 a.m.
Step-by-step explanation:
What is the value of the expression 2 + 32 ⋅ (3 − 1)? 20 22 23 32 HELP
Answer:
66
Step-by-step explanation:
Parentheses first 3-1 = 2
2*32=64
64+2=66
2
Given that sin 8 =
and gº
C.
1
IN NI
d
0
Answer:
It seems like there might be a bit of a mix-up or incomplete information in your question. "sin 8 =" appears to be incomplete, and "gº C." is not clear in the context provided. If you have a specific question or need assistance with a math or physics concept, please provide more details, and I'll be happy to help.
Step-by-step explanation:
The given sine value of 2/1 is not possible as the sine of an angle cannot exceed 1 or be less than -1. It seems there's an error in your question and incomplete information prevents a comprehensive answer.
Explanation:Given that the sin 8 = 2/1, it's important to note that in a range of -1 and 1, the sine of an angle cannot be greater than 1 or less than -1. Therefore, there's an error in your original question. Also, the second part of your question seems to be cut off (gº C. 1 IN NI). There seems to be no apparent relation to the sine function, and without a clear follow-up question or further information, I couldn't provide an accurate answer for it. Please revise your question and provide additional information if necessary.
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Simplify (write without the absolute value sign):
x+3, if x>2
Answer:
X+3 , if x>2
>2 is 3,4,5,6,,,extra
4+3 = 7
So , x>2
7>2
Step-by-step explanation:
Answer:
i dont know what it is
Step-by-step explanation:
LOL
Look at this check register. Calculate the current balance.
A check register has a balance of 82 dollars and 92 cents. 78 dollars and 24 cents is debited for a phone bill. 125 dollars is deposited for a pay check. 40 dollars is debited from the A T M. 56 dollars and 50 cents is debited for tennis lessons.
The current balance is $
.
Answer:
$33.18
Step-by-step explanation:
$33.18 is the answer because...
Step one first we have the money in the cash register of $82.92. Unfortunately she has to pay a phone bill of $78.24 so we subtract 82.92 and 78.24 which leaves the person with $4.68.Step two so she has $4.68 but now she gets an outstanding $125 paycheck. So we add $4.68 and $125 to get $129.68 as her new balance.Now the person's balance is $129.68 it says in the question she debited $40 from the ATM. So we subtract $129.68 and $40 to get $89.68.Step four she also had to pay $56.50 for the persons tennis lessons so we subtract $89.68 and $56.50 to get our final answer of $33.18Hope this helped :)The current balance is calculated by starting with the initial balance of $82.92 and then subtracting debits and adding credits from various transactions. After all adjustments, the current account balance is $33.18.
To calculate the current balance, we'll start with the first number under Balance and adjust it based on the recorded transactions.
Start with the initial balance: $82.92
Subtract the debit for the phone bill: $82.92 - $78.24 = $4.68
Add the deposit from the paycheck: $4.68 + $125.00 = $129.68
Subtract the ATM debit: $129.68 - $40.00 = $89.68
Finally, subtract the debit for tennis lessons: $89.68 - $56.50 = $33.18
Therefore, the current balance is $33.18.
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[tex]5x + 3x = 2 + 5 - 3x[/tex]
solve for x
Answer:
[tex]x = \frac{7}{11} [/tex]
Step-by-step explanation:
[tex]5x + 3x = 2 + 5 - 3x \\ 8x = 7 - 3x \\ 11x = 7 \\ x = \frac{7}{11} [/tex]
Factor the following polynomial completely.
-x2 y2 + x4 + 4y 2 - 4x2
A Country’s population in 1990 was 134 million. In 2000 it was 139 million. Estimate the population in 2014 using the exponential growth formula. Round your answer to the nearest million. P=Ae^kt
Answer:
167 million
Step-by-step explanation:
The ratio is 1 million people every 2 years
choose the scenario that could be represented by 3/4
a - three friends share four apples equally
b - A four hour trip is the wedding into three equal legs C - four people share three desserts equally
D - 4 pounds of oats I divide it equally among three horses
Answer:
C
Step-by-step explanation:
A,B,D all divide 4 by 3
Answer: 'C'
Step-by-step explanation:
Write the equation of the circle. A with a center A(-4,-3) and radius 5
Answer:
(x+4)^2 + (y+3)^2 = 5^2
Step-by-step explanation:
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
now substitute the known values
(x+4)^2 + (y+3)^2 = 5^2
and theres your equation
Jessie is considering a purchase of a $135,000 home at 5.5%. Under this rate,
her mortgage payment would be $766.51. If she purchases a point, her new
mortgage payment is $755.96. How many months would it take her to break-
even on the points purchase?
A. 244 months
B. 186 months
C. 128 months
D. 134 months
Answer: 128 months
Step-by-step explanation:
Final answer:
Jessie will break even on the point purchase for her mortgage in approximately 128 months, as a point costs 1% of the $135,000 home, and the monthly mortgage payment falls by $10.55 after purchasing the point.
Explanation:
The student is asking how many months it will take Jessie to break even on the purchase of a point for her mortgage. A point typically costs 1% of the loan amount, and in return, the lender reduces the interest rate on the mortgage. In this case, the monthly payment is reduced from $766.51 to $755.96, a monthly savings of $10.55 ($766.51 - $755.96).
To calculate the break-even point in months, divide the cost of the point by the monthly savings. If a point costs 1% of the $135,000 home, then the cost is $1,350 ($135,000 * 0.01). The number of months to break even is therefore $1,350 / $10.55, which equals approximately 128 months.
Therefore, the correct answer would be:
C. 128 months
plz anybody answer this plz will give you brainliest!!!
Answer
i got 440cm^2 as the answer
Can you answer these questions? Im doing them on my own but I need to check if they're right
Answer:
I got you.
Step-by-step explanation:
1. If x=5, whats (10x-5)+30:
First, (10x-5)
50-5=45
45+30=75
10x-5+30=75.
2.Inverse operations: 10+5 inverses 10-5, 10*5 inverses 10/5
3. I do: For example: 10x-5=60
Then, you would divide: 60/10 and 10/10
We need to isolate the variable: x-5=6
Leaving x to be 11.
4. That is a hard one but, for an equation to have no solution is that it is impossible to answer or just doesn't have an answer. And for an equation to have infinite solutions it means that it has more than one answer... Infinitely.
5. Using the distributive property for simplify: The distributive property of multiplication is a very useful property that lets you simplify expressions in which you are multiplying a number by a sum or difference. The property states that the product of a sum or difference, such as 6(5 – 2), is equal to the sum or difference of the products – in this case, 6(5) – 6(2).Remember that there are several ways to write multiplication. 3 x 6 = 3(6) = 3 • 3 • (2 + 4) = 3 • 6 = 18.
Graph the equation
y=2(x+1)(x-1)
To graph the equation y = 2(x+1)(x-1), we can start by finding the x-intercepts and y-intercept of the equation.
To find the x-intercepts, we set y = 0 and solve for x:
0 = 2(x+1)(x-1)
0 = 2(x^2 - 1)
0 = 2(x+1)(x-1)
So, the x-intercepts are -1 and 1.
To find the y-intercept, we set x = 0 and solve for y:
y = 2(0+1)(0-1)
y = -2
So, the y-intercept is -2.
Now, we can plot the intercepts on the coordinate plane and sketch the graph of the equation. Since the equation is a quadratic function, the graph will be a parabola.
The x-intercepts are -1 and 1, so we can plot these points on the x-axis. The y-intercept is -2, so we can plot this point on the y-axis.
Next, we can plot a few additional points to help us sketch the graph. For example, we can choose x = -2, -0.5, 0.5, and 2, and find the corresponding y-values:
When x = -2, y = 2(-2+1)(-2-1) = 6
When x = -0.5, y = 2(-0.5+1)(-0.5-1) = 1.5
When x = 0.5, y = 2(0.5+1)(0.5-1) = -1.5
When x = 2, y = 2(2+1)(2-1) = 6
Now, we can plot these points and sketch the graph of the equation, which is a parabola that opens upwards and passes through the points (-2, 6), (-1, 0), (0, -2), (1, 0), and (2, 6).
The graph of the equation y = 2(x+1)(x-1) is shown below:
Graph of y = 2(x+1)(x-1)
Therefore, this is the graph of the equation y = 2(x+1)(x-1).
What number is 110% of 150?
Answer:
165
Step-by-step explanation:
convert 110% to decimal, which is 1.1 by moving two places to the left. of means multiply so multiply 1.1 and 150 to get your answer!
Answer: 165.
Step-by-step explanation:
Which person is more likely to have more wealth upon retirement?
A-a person who has invested 5 percent of their income into a stock portfolio beginning at age 50
B-a professional who bought some of their company’s stock beginning at age 30
C-a person who has invested 5 percent of their income into an equity mutual fund beginning at age 22
D-a person who has invested 5 percent of their income into government bonds beginning at age 22
Answer:
c
Step-by-step explanation:
On a certain hot summer's day, 163 people used the public swimming pool. The daily prices are $ 1.50 for children and $ 2.50 for adults. The receipts for admission totaled $ 312.50 . How many children and how many adults swam at the public pool that day?
Answer: 95 children, 68 adults
Step-by-step explanation:
Let the number of children be y
Let the number of adults be z
The following equation can be gotten from the question:
y + z = 163 ...... equation i
1.5y + 2.5z = 312.5 ....... equation ii
Multiply equation I by 1.5
Multiply equation ii by 1
1.5y + 1.5z = 244.5 ......... equation iii
1.5y + 2.5z = 312.5 ........ equation iv
Then subtract equation iv from iii
-z = -68
z = 68
From equation I
y + z = 163
y = 163 - 68
= 95
95 children and 68 adults swam.
Pentagon VWXYZ is shown on the coordinate grid. A student reflected pentagon VWXYZ across the y-axis to create pentagon V'W'X'Y'Z'. Which rule describes this transformation? *
(x, y) --> (-x , y)
(x, y) --> (x , y + 8)
(x, y) --> (-y , x)
(x, y) --> (x , -y)
Answer: (x, y) —> (-x, y)
Step-by-step explanation:
This is because the translation rule for reflection across the y-axis is (x, y) —> (-x, y)
(x, y) --> (-x , y)
Step-by-step explanation:
When reflecting across the y-axis, you will want to switch the sign of the x-coordinate. If the x-coordinate is positive, you will want to switch it to negative and vice versa.
Examples:
(3,5) --> (-3,5)
(-6,-2) --> (6,-2)
~
If you are going to reflect across the x-axis, you will change the y-coordinate, so it is the opposite of reflecting across the y-axis.
A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have an average of 82? 85, 90, 79, 72
Answer:
84
Step-by-step explanation:
Because average is basically the mean, so i used a mean calculator and put in the four grades (numbers) and got an average of 81.5, so then i kept putting an additional other number in and wasn't getting 82, until i put in 84 and all of those numbers together gave me an average of 82.
Answer:
84
Step-by-step explanation:
The average is found by adding all the scores together and dividing by the number of scores
Let the unknown score be x
(85+90+79+72+x) /5 = 82
Multiply each side by 5
(85+90+79+72+x) /5*5 = 82*5
(85+90+79+72+x) = 410
Combine like terms
326+x = 410
Subtract 326 from each side
326+x-326 = 410 -326
x =84
need help asap please
Liliana is renting a beach house for a family vacation. The house charges a $75 cleaning fee plus $95 per night. If Liliana wants to spend a maximum of $645 on the rental, which inequality represents “n”, the number of nights can she afford to rent the beach house?
Answer:
She can spend 6 nights in the beach house
Identify the least and greatest value in each set.
1. 34, 62, 45, 35, 75, 23, 35, 65 23, 75
Answer:
Least; 23. Greatest; 75
Hope this helped.
Is y=x a proportional linear equation
Answer: yes.
Step-by-step explanation:
The model represents a perfect square monomial.
*72
+
+42
What equation is represented by the model?
(2x)2 = 4x2
(2x2)2 = 4x4
(4x)2 = 8x2
(4x2)2 = 8x8
Answer:
The answer is A
Step-by-step explanation:
(2x)^2 = 4x^2
Find an explicit formula for the geometric sequence 120, 60, 30, 15, ...
Final answer:
The explicit formula for the geometric sequence 120, 60, 30, 15, ... is an n = 120 times [tex](0.5)^{n-1}[/tex], where an is the nth term of the sequence.
Explanation:
The sequence given, 120, 60, 30, 15,..., is an example of a geometric sequence where each term is obtained by multiplying the previous one by a constant called the common ratio. For this sequence, the first term a is 120, and the common ratio r is 0.5 since each term is half the preceding one.
An explicit formula for a geometric sequence can be expressed as:
an = a times [tex]r^{n-1}[/tex]
Where a is the first term, r is the common ratio, and n is the term number. Applying this to the given sequence, the explicit formula is:
an = 120 times [tex](0.5)^{n-1}[/tex]
This formula represents the nth term of the sequence, showing how each term can be calculated directly from its position in the sequence.
MATH HELP !50 POINTS! PLEASE
Answer:
c 17 sorry if i got it wrong but thats what i got
Answer:
b) 19
Step-by-step explanation:
I took the price of the meat per pound and multiplied it by the amount the customer was purchasing.
I repeated that for each meat. I added my products together. My sum was $18.965, or about $19
I hope this makes sense :)
The value of a car depreciates every two years. The value of the car after t years is shown by the following expression. Which best describes the coefficient, 25,250? A. the number of times the value of the car depreciated from the original value B. the decrease in the value of the car every two years C. the rate at which the value of the car is decreasing D. the initial value of the car
Answer:
A.
Step-by-step explanation:
Answer:
A
Step-by-step explanation: