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Alenkinab [10]
2 years ago
10

Find the area of a circle that has a diameter of 11 inches. Approximate ar as 3.14. Round your answer to the

Mathematics
1 answer:
swat322 years ago
6 0

Answer:

94.99

Step-by-step explanation:

Hi,

The formula to find the area of a circle is: A = πr²

So...

A = 3.14 (r)²

The radius of the circle is 5.5 because half of the diameter is the radius.

A = 3.14 (5.5)²

A = 3.14 (30.25)

A = 94.985 rounded is 94.99

I hope this helps :)

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top surface area Stop = 130 in2

bottom surface area Sbot = 130 in2

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For the function F(x)=2x+15x−2, evaluate F(−6)
Sholpan [36]
F(-6) = 2(-6)+15(-6)-2 = -12-90-2 = -104
7 0
3 years ago
Can someone help me?​
Vera_Pavlovna [14]

Step-by-step explanation:

a)

a whole circle represents always 360 degrees.

we see the angle J is 72 degrees. the angle K is 90 degrees.

that leaves us for M and L together :

360 - 72 - 90 = 198 degrees.

we now know that twice as many people voted for L as for M. that means the angle L is twice as big as the angle M

on other words : L = 2M

and when we now say

198 = L + M

this means

198 = 2M + M = 3M

M = 66 degrees

and L is then 2M = 2×66 = 132 degrees

b)

again, the whole circle is 360 degrees.

J covers 72 of these 360 degrees.

that is 72/360 of all voting people.

72/360 = 1/5

the total of all voting people was 15840.

so, 1/5 of 15840 is

15840/5 = 3168

that means 3168 people voted for J.

3 0
2 years ago
how many more times intense is an earthquake that measures 8 on the Ritcher scale when an earthquake that measures 5?
natta225 [31]

Answer:

1000

Step-by-step explanation:

Since the Richter Scale is based off of an exponential equation, every point on the scale adds a magnitude of 10.

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