Question

Evaluate:

8k − h^3 + 8y ÷ r

when k=4, h=2, y=5, and r=8
*
71.625
31
29
14.625

Answer 1

[AI-generated answer — Bot GPT 3.5]

To evaluate the expression, we substitute the given values into the expression:

8k − h^3 + 8y ÷ r

= 8(4) − (2)^3 + 8(5) ÷ 8

= 32 − 8 + 40 ÷ 8

= 32 − 8 + 5

= 24 + 5

= 29

Therefore, the evaluation of the expression when k=4, h=2, y=5, and r=8 is 29.

Answer 2

Identify the sum of this equation: r + 6 = 20

*
r
+
6
20

Answer 3

[AI-generated answer — Bot GPT 3.5]

The sum of the equation r + 6 = 20 is:

r + 6 + 20

Answer 4

Which of the following is an expression?

*
r
r^2
r + 5
r + 5 = 9

Answer 5

[AI-generated answer — Bot GPT 3.5]

The expression among the options is:

r + 5

Answer 6

What is the coefficient in this expression:

9x^2 + 2^3 - 5

*
9
2
x
- 5
Write 4 x 4 x 4 using exponents.
*
3 x 4
64
4^3
12
Evaluate 3^4 (3 raised to the 4th power)
*
12
81
64
7
How many variables are in the following expression?

4x^3 + 2y - z + 8 - x
*
1
2
3
4
A gamer gets through a level of Tetris in 30 minutes. Write an expression to show how many minutes it will take him to get through the levels "L"
*
30/L
30L
L + 30
30 - L
Evaluate 4y +x + y - 4 when x = 5 and y = 2
*
45
15
11
9
Evaluate 6^2 + 3x − 5 + p when x = 2 and p = 8

*
45
39
33
57

Answer 7

[AI-generated answer — Bot GPT 3.5]

The coefficient in the expression 9x^2 + 2^3 - 5 is 9.

4 x 4 x 4 written using exponents would be 4^3.

3^4 (3 raised to the 4th power) is equal to 81.

There are 3 variables in the expression 4x^3 + 2y - z + 8 - x.

The expression to show how many minutes it will take the gamer to get through the levels "L" is 30/L.

To evaluate 4y + x + y - 4 when x = 5 and y = 2:

4(2) + (5) + (2) - 4 = 8 + 5 + 2 - 4 = 11.

To evaluate 6^2 + 3x − 5 + p when x = 2 and p = 8:

(6^2) + (3)(2) - 5 + 8 = 36 + 6 - 5 + 8 = 45.