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ella [17]
3 years ago
8

A circle with radius 9 has a sector with a central angle of 120°. What is the area of the sector. Provide step by step explanati

on please

Mathematics
1 answer:
inn [45]3 years ago
6 0
Okay, so you find the area of the full circle, 81pi and then 120 is 1/3 of the circle so you divide 81pi by 3 and get 27pi.
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Geometry B: fill in the blank
olga_2 [115]

Answer:

The circumference of a circle is the distance around the entire circle, while arc length, s, is the distance <u>between</u> two points on the circle.

C = 2πr = 2π( <u>5</u><u> </u>) = 10π ≈ 31.4 units

3.14 is an approximation for π.

s = θ/360° (C)

mAB = 60°/360° ( 31.4)

= <u>1</u><u>/</u><u>6</u>(31.4) ≈5.2 units

3 0
2 years ago
When sampled, 135 out of 200 people said they were runners. If the sample was taken from a population of 17,000 people, which of
Korolek [52]
D.  11,475  (135/200= .675 =67.5 %) (67.5% x 17,000 = 11,475) 
6 0
3 years ago
HURRY PLZ!!!
nasty-shy [4]

Answer:

D) no solution

Step-by-step explanation:

1/ (x-2) + 1/(x+2) = 4/(x^2-4)

x cannot equal 2 or -2 since that would make our fractions equal 1/0 or be undefined

Factor the term on the right

1/ (x-2) + 1/(x+2) = 4/(x-2)(x+2)

Multiply both sides by (x-2) (x+2)

(x-2) (x+2) (1/ (x-2) + 1/(x+2)) = 4/(x-2)(x+2)*(x-2) (x+2)

Distribute

x+2 + (x-2) = 4

Combine like terms

2x = 4

Divide by 2

2x/2 = 4/2

x =2

But this is not a possible solution since that is not in the domain

6 0
2 years ago
Is the distance from Boston, Massachusetts, to Phoenix, Arizona,about 4,000 centimeters or 4,000 kilometers? Explain.
Verdich [7]

Answer:

it's most likely 4,000 kilometers because centimeters are a very small rate of measurement and the distance between the 2 landmarks are very far away

7 0
2 years ago
Please help me answer this
balandron [24]

<em><u>Answer:</u></em>

option A is the correct answer

3 0
2 years ago
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