Indices - Ambitious

Question 1: Simplify:

x^{3} \cdot x^{4}

A

x^{12}

B

x^{7}

C

3 x^{4}

D

x^{- 1}

Question 2: Simplify:

x^{7} \div x^{5}

A

x^{12}

B

x^{2}

C

x^{- 2}

D

x^{7 / 5}

Question 3: Simplify:

x^{2} \cdot x^{3} \cdot x^{4} \cdot x^{5} \cdot x^{- 6}

A

x^{20}

B

x^{18}

C

x^{22}

D

x^{8}

Question 4: Simplify:

{(\frac{x^{8}}{x^{3}} \cdot x^{2})}^{2}

A

x^{25}

B

x^{14}

C

x^{49}

D

x^{9}

Question 5: Simplify:

{(0.72)}^{0} + 2^{- 4} + 9^{\frac{1}{2}} - 16^{\frac{1}{4}}

A

2 \frac{1}{16}

B

2

C

2 \frac{13}{16}

D

2 \frac{15}{16}

Question 6: Simplify:

8^{- 1} \cdot 100

A

12.5

B

125

C

800

D

80

Question 7: Simplify:

16^{\frac{2}{8}}

A

1

B

\sqrt{2}

C

2

D

4

Question 8: Simplify:

4^{- 1} \cdot 100 + 4^{\frac{1}{2}} \cdot 100 + 4^{- \frac{1}{2}} \cdot 100

A

200

B

150

C

275

D

175

Question 9: If

3^{x} = 81

, find

x

.

A

x = 27

B

x = 3

C

x = 4

D

x = 9

Question 10: If

7^{x - 2} = 49^{2 x + 5}

A

x = 2

B

x = - 4

C

x = - 1

D

x = 3

Test: Indices - Ambitious

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