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Ilia_Sergeevich [38]
3 years ago
15

I need help answer these questions. : (

Mathematics
2 answers:
kicyunya [14]3 years ago
7 0

Answer:

15. Her commission is $10.72.

16a.-8x-24

b.27+63y

Step-by-step explanation:

15. $134 multiplied by the 8% that she makes from commissions is 134x0.08=10.72

16a. Expand -4(2x+6)

-4 times 2x is -8x

-4 times 6 is -24

put them together and get -8x-24

b. Expand 9(3+7y)

9 times 3 is 27

coefficient of y is 9 times 7 which equals 63

put them together and get 27+63y

Vaselesa [24]3 years ago
4 0

Answer:

16. (a.) -8x-24 (b.) 27+63y

Step-by-step explanation:

A.      -4 x 2x = -8x

-4 x 6 = -24

B. 9 x 3 = 27

9 x 7y = 63y

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What is 7(x + 6) solve it
Elis [28]

Answer:

49

Step-by-step explanation:

First you must do x times 6, x is really just 1. After you do that, you times it by 7.

8 0
3 years ago
Read 2 more answers
Write a quadratic relation in the form y = ax2 + bx + c with roots 4 and - 3 and
pochemuha

Answer:

y =  2*x^2 - 2*x - 24

Step-by-step explanation:

If we have a quadratic function with roots a and b, we can write the equation for that function as:

y = f(x) = A*(x - a)*(x - b)

Where A is the leading coefficient.

In this case, we know that the roots are: 4 and -3

Then the function will be something like:

f(x) = A*(x - 4)*(x - (-3) )

f(x) = A*(x - 4)*(x + 3)

Now we need to determine the value of A.

We also know that the graph of the function passes through the point (3, -12)

This means that:

f(3) = -12

Then:

-12 = A*(3 - 4)*(3 + 3)

-12 = A*(-1)*(6)

-12 = A*(-6)

-12/-6 = A

2 = A

Then the equation is:

y = f(x) = 2*(x - 4)*(x + 3)

Now we need to write this in standard form, so we just need to expand the equation:

y = f(x) = 2*(x^2 + x*3 - x*4 - 4*3)

y = f(x) = 2*(x^2 - x - 12)

y = f(x) = 2*x^2 - 2*x - 24

Then the relation is:

y =  2*x^2 - 2*x - 24

4 0
3 years ago
Simplify the expression (7x2 − 3x) + 4x2. 8x 8x2 3x2 − 3x 11x2 − 3x NextReset
olchik [2.2K]
(7x^2-3x)+4x^2
7x^2+4x^2-3x
11x^2-3x
Answer: 11x^2-3x. 

You just combine like terms. 
7 0
3 years ago
)) What is the greatest common factor of 52 and 2?<br> Submit
slavikrds [6]

Answer:

2

Step-by-step explanation:

52 = 1 \times 2 \times 2 \times 13 \\ 2 = 1 \times 2 \\ common \: factors = 1 \: and \: 2 \\ gcf = 1 \times 2 = 2

4 0
3 years ago
- What is the complete factorization of 4x2 – 24xy + 36y2 ?​
Rzqust [24]

<u>Answer: </u>

The complete factorization of 4 x^{2}-24 x y+36 y^{2} are 4(x-3y)(x+3y)

<u>Solution:</u>

Given Data:

4 x^{2}-24 x y+36 y^{2}

Take common value in all the three term.so we take 4 as common term in the above expression

4 x^{2}-24 x y+36 y^{2}=4\left(x^{2}-6 x y+9 y^{2}\right)

Now factorize the expression \left(x^{2}-6 x y+9 y^{2}\right)

Find the two numbers, whose product should be 9 and sum should be -6.

-3,-3 are the numbers which satisfy the above condition.

When we add -3-3=Sum is 6

Product of -3 \times -3= 9  

-3 , -3 satisfies the condition.

So the expression will become as x^{2}-6 x y+9 y^{2} = x^{2}-3 x y-3 x y+9 y^{2}

Take the common term

x(x-3y)+3y(x-3y)  

(x-3y)(x+3y)  

hence the complete factorization of 4 x^{2}-24 x y+36 y^{2} are 4(x-3y)(x+3y)

5 0
3 years ago
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