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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 1240 pages

ISBN: 9780998625713

Chapter 9: Q 26. (page 1041)

Approximate Square Roots: $\sqrt{21}$

Short Answer

Expert verified

Round of two decimal places is $4.58$ .

Step by step solution

01

Given information.

The given square root is $\sqrt{21}$ .

02

Round the two decimal places.

$\sqrt{21}$

Use the calculator square root key.

$\sqrt{21} = 4.58257 . . .$

Round to two decimal places.

$\sqrt{21} = 4.58$

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Most popular questions from this chapter

In the following exercises, solve.

(a) $\sqrt{u - 3} + 3 = u$

(b) $\sqrt{x + 1} - x + 1 = 0$

In the following exercises, simplify and rationalize the denominator.

$\sqrt{\frac{19}{175}}$

In the following exercises, solve.

$\sqrt{9 p + 9} = \sqrt{10 p - 6}$

In the following exercises, simplify by rationalizing the denominator

$\frac{\sqrt{2}}{\sqrt{x} - \sqrt{6}}$

Solve: $\sqrt{x - 2} + 2 = x$ .

See all solutions

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