Square Roots and Cube Roots Questions and Answers

Q:

What is the value of $\sqrt{729} + \sqrt{72.9} + \sqrt{7.29}$

A) 30.5	B) 32.33
C) 35.6	D) 38.23

Answer & Explanation Answer: D) 38.23

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8 3630

Q:

What is the value of $\sqrt{473 + \sqrt{529} + \sqrt{256} + \sqrt{289}}$ ?

A) 27	B) 23
C) 19	D) 39

Answer & Explanation Answer: B) 23

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3 2599

Q:

The maximum value of $5 + 20 x - 4 x^{2},$ when X is real number

A) 1	B) 5
C) 25	D) 30

Answer & Explanation Answer: D) 30

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2 2180

Q:

What is the value of $\sqrt{361} + \sqrt{3.61} + \sqrt{0.0361}$ ?

A) 20.9	B) 22.11
C) 22.49	D) 21.09

Answer & Explanation Answer: D) 21.09

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Q:

Which of the following numbers will have an irrational square root?

A) 1024	B) 2401
C) 4096	D) 2048

Answer & Explanation Answer: D) 2048

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2 2082

Q:

If $x + \frac{1}{x} = - 2,$ then the value of $x^{7} + \frac{1}{x^{7}}$

A) 1	B) -1
C) 0	D) -2

Answer & Explanation Answer: D) -2

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5 2058

Q:

Find the square root of 1485961

A) 1213	B) 1219
C) 1229	D) 1239

Answer & Explanation Answer: B) 1219

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1 2049

Q:

The simplified form of ${(4 x + 3)}^{2} . (3 x - 5) - (4 x^{3} - 12 x^{2} + 9 x - 20)$ is

A) 6x2- 48x - 50	B) 24x3 + 2x2 - 32x - 15
C) 44x3 + 4x2 - 102x - 25	D) 24x3 + 8x2 - 42x - 50

Square Roots and Cube Roots Questions

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