Question

NEED HELP ASAP

Which of the following expressions is equivalent to (-7)(-7)(-7)?

3 · -7
-7 · 3
(-7)3
3-7

According to the order of operations, which of the following operations should be completed first in the following expression?

2(5 - 3)^2 + 6^2

multiply (5 - 3) by 2
square (5 - 3)
simplify (5 - 3)
add (5 - 3) to 6^2

Select all that apply.

Which expressions are equal to "five to the third power"?

5^3
3 · 3 · 3 · 3 · 3
5 · 5 · 5
125
15
243
3^5

The expression -8 · -8 · -8 · -8 can be expressed as _____.

-8^4
(-8)^4
-(8^4)

What is the value of -6^2?

-36
36
-12
12


Find the value of |5| - 4(3^2 - 2).

-11
-33
7
-23

Evaluate 8 ÷ -2 · 4^2 + 9.

-100
-55
73
-23

Simplify -5^2 + 8|-1| + (-3).

30
14
-20
-36

Answer 1

1) (-7)3

2) PEMDAS; simplify (5-3)

3) 5^3, 5x5x5 and 125

4) -8^4

5) 36

6) 7

7) -100

8) 30

There ya go! Pretty sure they're all right!

Answer 2

The answers are solved below.

Explanation:

we have to solve the given expressions

Part A: The expression (-7)(-7)(-7)

`(-7)(-7)(-7)=(-1)^37^3`

Option 3 is correct

Part B:
`2(5 - 3)^2 + 6^2`

First step to solve the above expression is to simplify (5-3) by BODMAS rule then to square the simplification.

Option 3 is correct.

Part C: To choose the expression "five to the third power"

"five to the third power" is

`5^3=5.5.5=125`

All 3 represents the expression "five to the third power"

Option 1,3,4 are correct.

Part D: The expression -8 · -8 · -8 · -8

The above expression can be written as

`(-8)^4`

Option 2 is correct

Part E:
`\text{The value of } -6^2`

`-6^2=-(6* 6)=-36`

Option 1 is correct

Part F:
`\text{The value of } |5| - 4(3^2 - 2)`

`|5| - 4(3^2 - 2)=5-4(9-2)=5-4(7)=5-28=-23`

Option 4 is correct.

Part G: Evaluate
`(8)/( -2)* 4^2 + 9`

`(8)/( -2)* 4^2 + 9=-4* 16+9=-64+9=-55{`

Option 2 is correct.

Part H: Simplify
`-5^2 + 8|-1| + (-3)`

`-5^2 + 8|-1| + (-3)=-25+8-3=-17-3=-20`

Option 3 is correct.