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Alex
2 years ago
9

If u help me i will mark u brainless

Mathematics
1 answer:
castortr0y [4]2 years ago
4 0
Answer is : B

Explanation: step-by-step
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What is the solution to the system of equations y=-3×-2 5×+2y=15
Anna007 [38]

Answer: x = - 19

y = 55

Step-by-step explanation:

y = - 3x - 2 (1)

5x + 2y = 15 (2)

substitute y = - 3x - 2 into equation (2)

equation (2) becomes

5x + 2 (-3x - 2) = 15

5x + ( - 6x - 4) = 15

opening the bracket

5x - 6x - 4 = 15

collecting like terms

5x - 6x = 15 + 4

-x = 19

x = - 19

substituting x = - 19 into equation 1

y = - 3x - 2

y = - 3 (-19) - 2

y = 57- 2

y = 55

6 0
3 years ago
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To find the area of a polygon use the formula Area = 1/2 x perimeter x apothem
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3 years ago
Extended Ratios - Complete one of the two prob
yKpoI14uk [10]

Answer:

6

Step-by-step explanation:

3 0
3 years ago
the values of a set can be represented by the expression x, 2x, 4x, and 5x. Write the data set for x=3 and find the mean
Irina18 [472]
X = 3
2x=6
4x=12
5x=15
--------
36
7 0
3 years ago
A. Transform each quadratic function into standard form. Identify the constants h and k. - 1) y = x2 + 10x – 13 2) y = x2 - 6x +
BaLLatris [955]

1. (-5,-12)

2. (3,-4)

To identify the constant H and K

- You need to write the given equation in vertex form

- Use complete the square method to write in vertex form

- The vertex form is

a  (x - h)  ^{2}  + k

- after writing the equation in the world storm you can see that there is a h and a k

- Pull the h and the k in into (h,k)

I can't do all of it so I'll do 2 for you and with explanations.

4 0
2 years ago
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