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zaharov [31]
3 years ago
13

What is the approximate area of a 70 decree sector of a circle with a radius of 8 inches

Mathematics
1 answer:
puteri [66]3 years ago
3 0
The area of the sector will also be 70/360
Sector area = 70/360 • pir^2
= 7/36 • pi • 8^2
A= 112/9 • pi
A= 39.1 inch^2
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I need help figuring this out asap please
Vera_Pavlovna [14]

Answer:

38.13 ft squared

Step-by-step explanation:

Since it is half of a circle we first find the area of a normal circle then divide by two.

So to find the area of  a circle it is pi times radius squared which in this case it would be 3.14 times 9 = 28.26

Then since it is a half circle we divide by two so

28.26/2 = 14.13

Then to find the area of the triangle we do 4 times 6 which is 24.

now we add the two which is 14.13 + 24 which is

38.13

4 0
3 years ago
I need help with number 52! And I haven’t done 51
Wittaler [7]

Answer:

  51.  A/P = (2.2t +25)/(2.6t +29)

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Step-by-step explanation:

51. The ratio of the two given functions is ...

  r(t) = A/P

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The salary ratio is approximately flat at 0.86 over the 4-year period. It is declining slightly each year.

5 0
3 years ago
Find the difference in simplest form for 3/5-1/7
vitfil [10]

3/5 - 1/7

Find the LCM of 5 and 7 to find equivalent fractions for both fractions

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1/7 = 5/35

So 21/35 - 5/35 = 16/35

I'm pretty sure that's the simplest form because I can't think of a common factor of 16 and 35 by which to reduce it further.

6 0
3 years ago
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Lunna [17]

Answer:

d=104

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Step-by-step explanation:

let d for dasha and a for Anna

d=4a

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d-39=d/4 +39

d-d/4=39+39

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d=(4*78)/3

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8 0
3 years ago
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Marina CMI [18]

Answer:

A

Step-by-step explanation:

 Two sides of a triangles sum must be larger than the third side.

6 0
2 years ago
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