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Harrizon [31]
4 years ago
15

Identify the property used to find the equivalent expression.

Mathematics
1 answer:
Oduvanchick [21]4 years ago
7 0

Answer:

associative propery of addition

Step-by-step explanation:

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A circle has a radius of 3. An arc in this circle has a central angle of 20°. What is the length of the arc? Either enter an exa
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Answer:

\frac{\pi  }{3}

2 * \pi * 3  * \frac{20}{360}

120\pi/360 = \frac{\pi  }{3}

Step-by-step explanation:

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3 years ago
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Find f(2) given f(x) = 3x^2 + 2x + 16​
horrorfan [7]

Answer:

f(2) = 32

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x² + 2x + 16

f(2) is x = 2

<u>Step 2: Evaluate</u>

  1. Substitute:                    f(2) = 3(2)² + 2(2) + 16
  2. Evaluate:                       f(2) = 3(4) + 2(2) + 16
  3. Multiply:                        f(2) = 12 + 4 + 16
  4. Add:                              f(2) = 32

And we have our answer!

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Please help!!!<br> Its an emergency
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Answer: A

Step-by-step explanation:

The line 'd' separates the square into two triangles. Since the side lengths are equal, the angle is 45°. We need the line separating the two 90° angles, that I am going to define as 'z'. We can use the sine function.

\sin(45)=\frac{z}{5\sqrt{2} }

z = 5

To solve for x, we can use sine again but for the 30 degree angle.

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Answer:

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