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AnnZ [28]
3 years ago
5

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, (x^2 – 1) feet, and (2x^2 – 15) feet. What is the perimeter of the triangle given the value of x = 4?
Mathematics
1 answer:
vfiekz [6]3 years ago
4 0
We are given with three lengths of a triangle expressed in terms and variables: (3x – 4) feet, (x^2 – 1) feet,  and (2x^2 – 15) feet. The perimeter of the triangle is equal to the sum of the three sides of the triangle. In this case, the sum is 3x^2 + 3x -20. When x is equal to 4, we substitute  <span>3*16 + 3*4 -20 equal to 40 feet.</span>
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podryga [215]

Answer:

1.3\ days

Step-by-step explanation:

step 1

Find the units rate of the first glacier

\frac{75}{3}=25\frac{meters}{day}

using proportion  

\frac{25}{1}\frac{meters}{day}=\frac{200}{x}\frac{meters}{days}\\ \\x=200/25\\ \\x=8\ days

step 2

Find the units rate of the second glacier

\frac{107.5}{5}=21.5\frac{meters}{day}

using proportion  

\frac{21.5}{1}\frac{meters}{day}=\frac{200}{x}\frac{meters}{days}\\ \\x=200/21.5\\ \\x=9.3\ days

step 3

Find the difference

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4 0
3 years ago
1. Solve the equations below.
Sergio039 [100]

Step-by-step explanation:

A) 3x + 8 = 23

3x = 23 - 8

3x = 15

x = 15 / 3 = 5

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x = 16 /2 = 8

C) 4 (x+2) = 32

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7 0
3 years ago
How many solutions does the equation −3x−17=−17−3x have?
harkovskaia [24]

Answer:

an infinite number of solutions

Step-by-step explanation:

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left side = right side  TRUE because -3x-17 is the same as -17-3x

we can rearrange  the the equation

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Since this equation is <u>always true ( for any number ) </u>we have <u>an infinite number of solutions</u> (since there are is an infinity of numbers.)

8 0
3 years ago
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Elis [28]

Answer:

TRUE

Step-by-step explanation:

The center is visible

4 0
3 years ago
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Dvinal [7]
3x+5y=11 answer : 3x+5y-11=0

Step by step explanation:

3x+5y=11
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3x+5y-11=11-11
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3x+5y=11

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8 0
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