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prohojiy [21]
4 years ago
15

Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (

3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?
Mathematics
2 answers:
Tasya [4]4 years ago
8 0
All you have to do is plug in the value of X in each expression for the sides of the triangle. Then after you figure out the values for the sides of the triangle in feet. Add the sides together to find the perimeter of the triangle.
prinxesslay05
3 years ago
you not telling me no answer
grin007 [14]4 years ago
8 0
The answer is 40ft. :)
prinxesslay05
3 years ago
Thank you so very much
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marusya05 [52]

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TiliK225 [7]

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Step-by-step explanation:

Apply the distributive property.

7

x

+

7

⋅

−

1

−

2

(

x

+

1

)

+

3

(

x

−

4

)

Multiply

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by

−

1

.

7

x

−

7

−

2

(

x

+

1

)

+

3

(

x

−

4

)

Apply the distributive property.

7

x

−

7

−

2

x

−

2

⋅

1

+

3

(

x

−

4

)

Multiply

−

2

by

1

.

7

x

−

7

−

2

x

−

2

+

3

(

x

−

4

)

Apply the distributive property.

7

x

−

7

−

2

x

−

2

+

3

x

+

3

⋅

−

4

Multiply

3

by

−

4

.

7

x

−

7

−

2

x

−

2

+

3

x

−

12

Subtract

2

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from

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x

.

5

x

−

7

−

2

+

3

x

−

12

Add

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x

and

3

x

.

8

x

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7

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2

−

12

Subtract

2

from

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.

8

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9

−

12

Subtract

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.

8

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