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Question (21)

QN0018460

Which expression is equal to 3⁻²?

(A) 1/6
(B) 1/9
(C) 9
(D) 6

Correct Answer: B

Explanation:

3⁻² = 1/9.

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Question (22)

QN0018461

Simplify m⁻⁴ × m⁻⁶.

(A) m⁻¹⁰
(B) m¹⁰
(C) m⁻²
(D) m²

Correct Answer: A

Explanation:

−4 + (−6) = −10.

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Question (23)

QN0018462

What is the value of (−2)⁻³?

(A) −1/8
(B) 1/8
(C) −8
(D) 8

Correct Answer: A

Explanation:

(−2)⁻³ = 1/(−8).

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Question (24)

QN0018463

Simplify 6⁻⁴ ÷ 6⁻².

(A) 6⁻⁶
(B) 6²
(C) 6⁻²
(D) 6⁶

Correct Answer: C

Explanation:

−4 − (−2) = −2.

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Question (25)

QN0018464

Which of the following is equal to 1/11³?

(A) 11³
(B) 11⁻³
(C) 3⁻¹¹
(D) 11⁻¹

Correct Answer: B

Explanation:

Reciprocal form gives negative exponent.

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Question (26)

QN0018465

What is the value of 25⁻¹?

(A) 1/5
(B) 1/25
(C) 25
(D) 5

Correct Answer: B

Explanation:

25⁻¹ = 1/25.

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Question (27)

QN0018466

Simplify q⁻² × q⁵.

(A) q⁻⁷
(B) q³
(C) q⁻³
(D) q⁷

Correct Answer: B

Explanation:

−2 + 5 = 3.

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Question (28)

QN0018467

Which decimal is equal to 10⁻⁶?

(A) 0.000001
(B) 0.00001
(C) 0.0001
(D) 0.001

Correct Answer: A

Explanation:

10⁻⁶ = 1/1000000.

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Question (29)

QN0018468

Simplify 8⁻³ × 8³.

(A) 1
(B) 8
(C) 64
(D) 0

Correct Answer: A

Explanation:

Exponents add to 0.

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Question (30)

QN0018469

What is the value of (−10)⁻¹?

(A) 10
(B) −10
(C) −1/10
(D) 1/10

Correct Answer: C

Explanation:

Reciprocal of −10 is −1/10.

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