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3 years ago

5

Choose the correct simplification of 9x2(4x + 2x2 − 1).

1 answer:

RSB [31]3 years ago

3 0

Answer:

72X + 54

Step-by-step explanation:

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Given PQR ~ STR, find QT

Dafna11 [192]

30/36=38/(36+X)
X=9.6

5 0

4 years ago

A rectangular exercise mat has a perimeter of 36 feet. The length of the mat is twice the width. Write and solve an equation to

denpristay [2]

Answer:

Part a) The length of the mat is $12\ ft$

Part b) The area of the mat is $72\ ft^{2}$

Step-by-step explanation:

step 1

Find the length

Let

L-----> the length of the rectangle

W---> the width of the rectangle

we know that

The perimeter of rectangle is

$P=2(L+W)$

$P=36\ ft$

so

$36=2(L+W)$

$18=(L+W)$ ----> equation A

$L=2W$ -----> equation B

substitute equation B in equation A

$18=(2W+W)$

solve for W

$18=3W$

$W=18/3=6\ ft$

Find the value of L

$L=2(6)=12\ ft$

step 2

Find the area

The area of rectangle is equal to

$A=LW$

substitute the values

$A=(12)(6)=72\ ft^{2}$

3 0

3 years ago

Plzzzzzzzzzzzzz helpppppppppppppp

Ierofanga [76]

Heyyyoooooooooo I got youuuuuu giveeee meeee a second pleaseeeeeee

6 0

3 years ago

Read 2 more answers

Help please do not get this

77julia77 [94]

It would be: Help, please I do not get this.

3 0

4 years ago

PLEASE HELP THANK YOU !!!!!!!

Fantom [35]

Answer:

Pretty sure c is your correct answer :)

Step-by-step explanation:

I hope this helps :)

5 0

3 years ago