 mycollegehive

math

843 questions
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Brett was given the problem: “Evaluate 2x^2 + 5 when x = 3.” Brett wrote that the answer was 41. Was Brett correct? Explain your answer

Brett was given the problem: “Evaluate 2x2 + 5 when x = 3.” Brett wrote that the answer was 41. Was Brett correct? Explain your answer

Tags: JMAP, math, expression

When x = 4, the value of 2x^0 + x! is

When x = 4, the value of 2x0 + x! is

1) 24

2) 25

3) 26

4) 28

Tags: JMAP, math, expression

What is the value of the expression 3a^2 - 4|a| + 6 when a = -3?

What is the value of the expression 3a2 - 4|a| + 6 when a = -3?

1) -24

2) -9

3) 21

4) 45

Tags: JMAP, math, expression

If x = -3, what is the value of |x - 4| - x^2 ?

If x = -3, what is the value of  |x - 4| - x2 ?

1) -8

2) -2

3) 7

4) 16

Tags: JMAP, math, expression

If x = 2 and y = -3, what is the value of 2x^2 - 3xy - 2y^2 ?

If x = 2 and y = -3, what is the value of 2x2 - 3xy - 2y2 ?

1) -20

2) -2

3) 8

4) 16

Tags: JMAP, math, expression

If t = -3, then 3t^2 + 5t + 6 equals

If t = -3, then 3t2 + 5t + 6 equals

1) -36

2) -6

3) 6

4) 18

Tags: JMAP, math, expression

If a = 3 and b = -1, what is the value of ab - b^2 ?

If a = 3 and b = -1, what is the value of ab - b2 ?

1) -2

2) 2

3) -4

4) 4

Tags: JMAP, math, expression

If x = -4 and y = 3, what is the value of x - 3y^2 ?

If x = -4 and y = 3, what is the value of x - 3y2 ?

1) -13

2) -23

3) -31

4) -85

Tags: JMAP, math, expression

What is the value of x^2 - 4y / 2 , if x = 4 and y = -3?

What is the value of x2-4y / 2  , if x = 4 and y = -3?

1) -2

2) 2

3) 10

4) 14

Tags: JMAP, math, expression

What is the value of the expression -3x^2 y + 4x when x = -4 and y = 2?

What is the value of the expression -3x2y + 4x when x = -4 and y = 2?

1) -112

2) -80

3) 80

4) 272