Which statement explains how to simplify $$(12^3)^4?$$ ?

Multiply the exponents & keep the base the same.

Divide the first exponent by the second & keep the base the same.

Add the exponents & keep the base the same.

Subtract the second exponent from the first & keep the base the same.

Keyna and Alaysia both babysit. Keyna earns $75 for 10 hours of babysitting and $30 for 4 hours of babysitting. Andeana charges a set fee of $5 plus an amount per hour. Her fee in dollars, F, for h hours of babysitting is given by the equation F =3h+5. Which statement is true?

Keyna charges $7.50/hour, which is higher than Andeana’s hourly rate.

Andeana charges $10.00/hour, which is higher than Keyna’s hourly rate.

Andeana charges $7.00/hour, which is higher than Keyna’s hourly rate.

Keyna charges $7.00/hour, which is equal to Andeana’s hourly rate.

Which of the following sets of coordinates represents a function?

{(2.5,17),(9.4,−5),(2,0.7),(10,1.3)}

{(−3,23), (0,12), (10,−5),(0,4)}

{(0,8), (−8.5,7), (3.1,9),(−8.5,10)}

{(25,102), (26,34), (25,87), (26,38)}

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

A. Nate’s service ($38 vs. $40) is cheaper

A. Beth's service ($38 vs. $40) is cheaper

A. Nate’s service ($42 vs. $44) is cheaper

A. Beth's service ($42 vs. $44) is cheaper

A car dealer is comparing how quickly two kinds of car motor oil engines heat up. He records the change in the temperature (degrees Fahrenheit) of each car motor oil engine over time (minutes) in the same car traveling under the same conditions at the same speed. The graph shows his results for the first car motor oil. The table shows his results for the second motor oil engine What conclusion can the car dealer make about the two kinds of motor oil engine?

The rate of temperature increase for the first motor oil is 0.5 °F greater than that of the second car motor oil engine.

The rate of temperature increase for the second motor oil is 3 °F greater than that of the first car motor oil engine.

The rate of temperature increase for the second motor oil is 0.5 °F greater than that of the first car motor oil engine.

The rate of temperature increase for the first motor oil is 3 °F greater than that of the second car motor oil engine.

Which of the following sets of coordinates represents a function?

{(−2.5,2), (9.3,−5),(2,0.5),(−10,1.3)}

{(−3,23), (0,12), (10, −5), (0,4)}

{(0,8), (−8.5,7),(3.1,9),(−8.5,10)}

{(25,102), (26,34), (25,87), (26,38)}

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

Nate’s service ($38 vs. $40) is cheaper

Beth's service ($38 vs. $40) is cheaper

Nate’s service ($42 vs. $44) is cheaper

Beth's service ($42 vs. $44) is cheaper

Find the rate of change

Not a constant slope/Non-Linear

Find the rate of change

Not a constant slope/Non-Linear

What is a possible scenario for the given table?

You have $6 and get $2 more each day!

You have $8 and get $5 more each day!

You have $16 and get $2 more each day!

You have $2 and get $6 more each day!

What has the GREATER rate of change.

Someone who starts with $6 and gets $8 each day.

Someone who starts with $8 and gets $6 each day.

Longest side in a right triangle

Vertical side in a right triangle

Horizontal side in a right triangle

What is the final step in solving this work for c? a 2 + b 2 = c 2 3 2 + 4 2 = c 2 9 + 16 = c 2 25 = c 2

Take the square root of both sides

Question Bank for Grade 8 Mathematics

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Mathematics

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8th Grade

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Practice Problem

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Hard

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8.7.C

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Alexander Ohene-Oduro

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188 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which expression is equal to 40,000?

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2.5 times as many

4 times as many

0.4 times as many

0.25 times as many

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Which expression is equal to 40,000?

Which statements are true? Select TWO that apply.

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