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Afina-wow [57]
4 years ago
8

Which of the following is the approximate square root of 24, rounded to the nearest whole number?

Mathematics
1 answer:
Vlad1618 [11]4 years ago
4 0

Answer:

<u>The correct answer is A. 5</u>

Step-by-step explanation:

1. Let's review the information provided to us for solving the question:

Which of the following is the approximate square root of 24, rounded to the nearest whole number?

We are asked to find out the square root of 24 and if the number has a lot of decimal places, round it to the closest whole number.

√24 = √6 * 4 (Simplifying)

√6 * 4 = 2 √6

2 √6 = 2 * 2.44948974 = 4.89897948

<u>Rounding to the nearest whole number the answer is 5.</u>

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What's the area of a circle with diameter 18 units? Question 8 options: A) 9π units2 B) 81π units2 C) π units2 D) 18π units2
Anna [14]

Answer:

B) 81π units²

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Radius of a Circle Formula: r = d/2

  • r is radius
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Area of a Circle Formula: A = πr²

Step-by-step explanation:

<u>Step 1: Define</u>

Diameter <em>d</em> = 18 units

<u>Step 2: Manipulate Variables</u>

Radius <em>r</em> = 18 units/2 = 9 units

<u>Step 3: Find Area</u>

  1. Substitute in <em>r</em> [Area of a Circle Formula]:                                                       A = π(9 units)²
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3 years ago
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