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Dmitriy789 [7]
2 years ago
14

If r = 12 cm, what is the area of this sector? Express your answer to the nearest tenth of a centimeter.​

Mathematics
2 answers:
Elena L [17]2 years ago
8 0

Answer:

339.3 to nearest tenth of cm^2.

Step-by-step explanation:

This is 3/4 of a circle so the area is:

3/4 * pi r^2

= 3/4 * 12^2 pi

=  108 pi

= 339.292

Umnica [9.8K]2 years ago
4 0

Answer:

339.3 cm

Step-by-step explanation:

12 • 12 = 144

Find 144π

Find 3/4 of it

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What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from a) 5 to 11? b)2 to 8? c)10
LenKa [72]

Answer: 1/2, 1/2, 1/4

Step-by-step explanation:

To find the fraction that the hour hand turns of a clockwise revolution, we have to find how long it is going then divide by 12

Ex. a) 11 - 5 = 6, 6/12 = 1/2 so the hour hand turns by 1/2 of a clockwise revolution

b) 8 - 2 = 6, 6/12 = 1/2 so the hour hand turns by 1/2 of a clockwise revolution

c) For this, we have to convert 1 into 13 as 1 - 10 is a negative number

13 - 10 = 3, 3/12 = 1/4 so the hour hand turns by 1/4 of a clockwise revolution

4 0
1 year ago
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What are the x and y intercepts of the equation: 10x + 4y = -20?
snow_tiger [21]

Answer:

x= (-2, 0) y=(0, -5)

Step-by-step explanation:

or you could say -2 and -5

3 0
2 years ago
Please help me asap thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
saveliy_v [14]

Answer:

the correct answer would be d.

Step-by-step explanation:

These lines should be straight line, since they have no slope.

8 0
3 years ago
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WILL GIVE BRAINLIEST PLEASE HELP!!
Anastasy [175]
Hi.

Your answer is going to be

C.) 33

Hope this helps! :)
5 0
3 years ago
I really Need help solving this problem!
Paraphin [41]

Answer:

Hello,

Answer A : 11.2 ≤ X ≤ 29.2

Step-by-step explanation:

Z=\dfrac{X-20.2}{4.5} \\\\X=4.5*Z+20.2\\\\For\ Z=-2,  \ X=4.5*(-2)+20.2=11.2\\For\ Z=2,  \ X=4.5*2+20.2=29.2\\

8 0
3 years ago
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