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pogonyaev
3 years ago
7

I need help with the equation inserted in the picture.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer:

x = 4

-4x+21 => 5

Step-by-step explanation:

The given triangle in the picture is isosceles triangle which means that two sides of the triangle are equal.

So,

Side\ 1: -4x+21\\Side\ 2: -4x+21\\Side\ 3: 6\\Perimeter = 16

Now

Putting all the values in equation for perimeter

Side\ 1+Side\ 2+Side\ 3 = 16\\-4x+21 -4x+21 + 6 =16\\-8x +48 = 16\\-8x = 16-48\\-8x = -32\\\frac{-8x}{-8} = \frac{-32}{-8}\\x = 4

Putting x = 4 in side 1

=-4(4)+21\\= -16+21\\=5

Hence,

x = 4

-4x+21 => 5

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Use the Distributive Property to rewrite the expression. 9(y + 4)
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Answer:

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Step-by-step explanation:

Because if you distribute the 9 inside the parenthesis, you'd get

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so 9y+36

Hope my answer was helpful to you!

7 0
3 years ago
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Answer:

14y + 9

Step-by-step explanation:

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Collect like terms

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= 7y + 8

If Bob creates a new triangle that is 7 less than twice of the perimeter of the triangle above, the expression of the new triangle would be:

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3 years ago
A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 48t where t equals the
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Answer:

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Explanation:

<u>1) Explanation of the model:</u>

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<u>2) Axis of symmetry:</u>

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3 years ago
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Answer:

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Answer:

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Step-by-step explanation:

4 0
2 years ago
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