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krok68 [10]
4 years ago
12

A central angle of a circle intercepts an arc of length 18 centimeters. The radius of the circle is 9 centimeters. What is the m

easure of the central angle in radians?
Mathematics
1 answer:
WITCHER [35]4 years ago
5 0

Answer:

.44444444

Step-by-step explanation:

πr²=full circumference

18/π(9)²=x/2π

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Could use a bit of help here. I'm terrible at Math. ​
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Step-by-step explanation:

<u>Step 1:  Answer problem 1</u>

<em>Pull out 4</em>

4(9x^2 - 4)

<em>Factor</em>

4(3x + 2)(3x - 2)

<u>Step 2:  Answer problem 2</u>

<em>Fact</em>or

(11 + 2x)(11 - 2x)

<u>Step 3:  Answer problem 3</u>

<em>Pull out 9</em>

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Step-by-step explanation:

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My name is Ann [436]

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3 years ago
Solve the following equation: x + 5 = 42
Readme [11.4K]

Answer:

x = 37

Step-by-step explanation:

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What is the measurement of ∠BAC and ∠ABC? Explain your process of solving.
Paraphin [41]

Answer:

<BAC = 78

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Step-by-step explanation:

The remote angles theorem states that when one extends a side of a triangle, the angle formed between the extension and one of the sides of the triangle is equal to the sum of the two non-adjacent angles inside the triangle. One can apply this theorem here and state the following,

<BAC + <ABC = <ACD

Substitute,

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Simplify,

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Inverse operations,

9y + 11 = 146

     -11     -11

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/9      /9

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Now substitute this value back into the expressions to find the numerical measurement of (<BAC) and (<ABC),

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4(15) + 8

68

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3 years ago
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