Quiz about Exponent Math Review

Question 1

1.) Simplify
(2a²b⁴z)(6a³b²z⁵)

Accepted Answer

12a⁵b⁶z⁶

Answer

8a⁵b⁶z⁶

Answer

12a⁶b⁸z⁵

Answer

8a⁶b⁸z⁵

Question 2

2.) Simplify
(3x³y⁵)⁴

Accepted Answer

81x¹²y²⁰

Answer

3x¹²y²⁰

Answer

12x¹²y²⁰

Answer

81x7y9

Question 3

3.) Simplify
(45x⁶y²)/(5x⁴y⁹)

Accepted Answer

(9x²)/y⁷

Answer

40x2y7

Answer

9x2y7

Answer

9x¹⁰y¹¹

Question 4

4.) Simplify
(16x⁴y^-5)/(8a³b^-8)

Accepted Answer

(2x⁴b⁸)/(a³y⁵)

Answer

(a³y⁵)/(2x⁴b⁸)

Answer

(8x⁴b⁸)/(a³y⁵)

Answer

2x⁴b⁸a³y⁵

Question 5

5.) Simplify
(w^3/4z^8/7)(w^3/4z^6/7)

Accepted Answer

w3/2z2

Answer

w^9/4z^48/7

Answer

w^9/16z^48/49

Answer

w^6/4z^14/7

Question 6

(y9)-2

Accepted Answer

1/y18

Answer

y18

Answer

y11

Answer

y9/2

Question 7

Evaluate this expression using the quotient rule.

Accepted Answer

95

Answer

99

Answer

15

Answer

9-5

Question 8

(7uv2)-5

Accepted Answer

1/7⁵u⁵v¹⁰

Answer

-35uv-10

Answer

-5/7uv2

Answer

1/7uv10

Question 9

(5³x²y⁴)⁰

Accepted Answer

1

Answer

5xy

Answer

0

Answer

5

Question 10

Simplify (-4r⁵)(2r⁸)

Accepted Answer

-8r13

Answer

-2r13

Answer

-8r40

Answer

-2y40

Question 11

Make this negative exponent positive.
9^-3

Accepted Answer

1/93

Answer

93

Answer

1/9-3

Answer

729

Question 12

According to exponent rules, when we multiply the same base we _______ the exponents.

Accepted Answer

Add

Answer

Multiply

Answer

Divide

Answer

Subtract

Question 13

Question 13.

Accepted Answer

b6/2a2

Answer

2a2b6

Answer

1/2a2b6

Answer

2b6/a2

Question 14

Explain the error in the simplification below:
x³yx^-4z^-2=x^-1yz^-2

Accepted Answer

Should have moved the negative exponents to the bottom of a fraction.

Answer

Should have multiplied the x exponents.

Answer

Should have subtracted the x exponents.

Answer

There is no error.

Question 15

The expression can be written equivalently with the following exponent on x.

Accepted Answer

9/5

Answer

5/9

Answer

4

Answer

45

Question 16

This expression can be written as the following exponent on x.

Accepted Answer

x-1/5

Answer

x1/5

Answer

x-5

Answer

x5

Question 17

Which is greater, 2654⁰ or 5⁰?

Accepted Answer

They are the same

Answer

26540

Answer

50

Answer

Zero is greater

Question 18

What transformation does the graph show?

Accepted Answer

Reflection (y-axis)

Answer

Horizontal Shift

Answer

Reflection (x-axis)

Answer

Reflection (y=x)

Question 19

3 years ago you had $120 in the bank. You now have $207.36.
If the amount of money at the end of each year increases exponentially, then how much will you have in the bank after another 7 years?

Accepted Answer

207.36(1+.2)⁷

Answer

120(1+.2)¹⁰

Answer

All of the answers are correct

Answer

None of the answers are correct because the growth rate is 25% not 20%

Question 20

In medieval times there were 10,000 people living in a city that was struck by a plague so that people began to die at an exponential rate daily. After 6 days, there were only 8,500 people living.
How many were living after three weeks?

Accepted Answer

10,000(1-.0267)²¹

Answer

8,500(1-.0294)²¹

Answer

10,000(1-.0294)²¹

Answer

8,500(1-0.267)²¹

Question 21

A scientist started with a culture of 20 bacteria in a dish. The number of bacteria at the end of each successive hour increased exponentially, so that the number at the end of one day was 220.
How many bacteria were there after only 10 hours?

Accepted Answer

20(1+.105)¹⁰

Answer

20(1-.105)¹⁰

Answer

20(1+.42)¹⁰

Answer

20(1-.42)¹⁰

Exponent Math Review

21 questions

1.) Simplify
(2a²b⁴z)(6a³b²z⁵)

2.) Simplify
(3x³y⁵)⁴

3.) Simplify
(45x⁶y²)/(5x⁴y⁹)

4.) Simplify
(16x⁴y^-5)/(8a³b^-8)

5.) Simplify
(w^3/4z^8/7)(w^3/4z^6/7)

(y⁹)^-2

Evaluate this expression using the quotient rule.

(7uv²)^-5

(5³x²y⁴)⁰

Simplify (-4r⁵)(2r⁸)

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Exponent Math Review

21 questions

1.) Simplify (2a2b4z)(6a3b2z5)

2.) Simplify(3x3y5)4

3.) Simplify(45x6y2)/(5x4y9)

4.) Simplify(16x4y-5)/(8a3b-8)

5.) Simplify (w3/4z8/7)(w3/4z6/7)

(y9)-2

Evaluate this expression using the quotient rule.

(7uv2)-5

(53x2y4)0

Simplify (-4r5)(2r8)

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1.) Simplify
(2a²b⁴z)(6a³b²z⁵)

2.) Simplify
(3x³y⁵)⁴

3.) Simplify
(45x⁶y²)/(5x⁴y⁹)

4.) Simplify
(16x⁴y^-5)/(8a³b^-8)

5.) Simplify
(w^3/4z^8/7)(w^3/4z^6/7)

(y⁹)^-2

(7uv²)^-5

(5³x²y⁴)⁰

Simplify (-4r⁵)(2r⁸)