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Mumz [18]
3 years ago
12

If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?

Mathematics
1 answer:
mihalych1998 [28]3 years ago
4 0
Circumference of entire circle = 2 * PI * 10
circumference of entire circle = <span> <span> <span> 62.832 feet
81 degrees is (9/40) of a circle
62.832 * </span></span></span><span>(9/40) = </span> <span> <span> <span> 14.1372 </span> </span> </span>

Source:
http://www.1728.org/radians.htm


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Answer................::.
SashulF [63]
<h3>Answer: 33</h3>

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Work Shown:

8^(x+7) = 32^(x-9)

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4 years ago
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5 0
3 years ago
Find the value of x. Round to<br> the nearest tenth.
denpristay [2]

Answer:

\displaystyle x \approx 38.2 ^{\circ}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
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Equality Properties

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<u>Pre-Calculus</u>

Law of Sines: \displaystyle \frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}

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Step-by-step explanation:

<u>Step 1: Identify</u>

A = 27°, a = 11

B = x°, b = 15

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute [LOS]:                     \displaystyle \frac{sin(27^{\circ})}{11} =\frac{sin(x^{\circ})}{15}
  2. Cross-multiply:                        \displaystyle 11sin(x^{\circ}) = 15sin(27^{\circ})
  3. Isolate <em>x</em> term:                         \displaystyle sin(x^{\circ}) = \frac{15sin(27^{\circ})}{11}
  4. Isolate <em>x</em>:                                  \displaystyle x = sin^{-1}(\frac{15sin(27)}{11})
  5. Evaluate:                                 \displaystyle x = 38.2488 ^{\circ}
  6. Round:                                    \displaystyle x \approx 38.2 ^{\circ}
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3 years ago
Help anyone ?????????
elena-14-01-66 [18.8K]
Ans: -4.3

Integers are all whole numbers negative, positive, and 0

Hope this helped :)
7 0
4 years ago
Read 2 more answers
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