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olchik [2.2K]
3 years ago
15

Calculate the perimeter of this figureto the nearest tenth.​

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

the answer is 41 ft

Step-by-step explanation:

hope this is right

good luck!!

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If seven times a number is added to the squares of the number and the result is negative twelve, what are the numbers?
AleksAgata [21]
Let's name the number 'n'. Now write an equation. 7*n +n^2 =12Now you can form a quadratic. n^2 +7n-12=0. Now you can use a myriad of methods to solve it. If you still need help, just message me. 
6 0
3 years ago
!!!!!!!!15 POINTS FOR ANSWERING THIS CORRECTLY!!!!!!!!
Georgia [21]
<span> graph of y = [x] for -2 ≤ x ≤ 2 </span>

4 0
3 years ago
Pls answer this math problem
ankoles [38]

Answer:

  -5

Step-by-step explanation:

Substituting x=4 into the equation gives a 2-step linear equation in y. It is solved by isolating the variable and making its coefficient be 1.

__

<h3>use x=4</h3>

When x=4, the equation becomes ...

  -3x +9y = -57

  -3(4) +9y = -57

  -12 +9y = -57

<h3>solve 2-step equation</h3>

The <u>first step</u> is to "isolate" the variable term (9y) by adding the opposite of the constant that is on the same side of the equation. The result is that the variable term is by itself on one side of the equal sign.

  -12 +12 +9y = -57 +12 . . . . . add the opposite of -12

  9y = -45 . . . . . . . . . . . . . . simplify

The <u>second step</u> is to make the coefficient of y be 1. We do that by multiplying by its inverse, 1/9. Equivalently, we divide by 9.

  (1/9)(9y) = (1/9)(-45) . . . . multiply by the inverse of 9

  y = -5 . . . . . . simplify

6 0
2 years ago
Find the product of the following expression.<br> 4(3x2 - 4x + 5)
Papessa [141]

Answer:

-16x + 44

Solution:

4(3×2 - 4x + 5)

= 4( 6 - 4x + 5)

=4( -4x + 11)

= -16x + 44

4 0
3 years ago
AB is a diameter of circle C. What is the degree measure of x?
UNO [17]
It’s a right angle. it follows the circle theorem ‘the angle in a semi-circle is 90 degrees’
8 0
3 years ago
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