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vovikov84 [41]
3 years ago
11

Find (a) the circumference and (b) the area of the circle. Use 3.14 or 22/7 for pi. Round your answer to the nearest whole numbe

r, if necessary.
A circle with a diameter of 70 inches.

(a) circumference: about ? in.

(b) area: about ? in.²
Mathematics
2 answers:
poizon [28]3 years ago
8 0

Answer:

lol

Step-by-step explanation:

h

balandron [24]3 years ago
4 0

Answer:

a)219.8

b)3846.5

Step-by-step explanation:

a) circumference is pi*diameter, so 3.14*70 is 219.8

b) area is pir^2, and radius is 1/2 of diameter, it would be 3.14*35^2, so 3.14*1225, so 3,846.5 in^2.

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Semmy [17]

Answer:

exact form:

9/2

decimal form:

4.5

mixed number form:

4 1/2

Step-by-step explanation: sorry if this wasnt what you were looking for.

3 0
3 years ago
PLEASE HELPP!
zheka24 [161]

Answer:

5^2 = 100

100 x 3.14 = 314

Now we multiply by 20 since it's the height.

314 x 20 = 6,280 cm^3 is your answer.

Formula of cylinder:

H x πr^2

Height x pi(3.14 or 22/7 depending what they tell you to use for pi) x radius being squared (your radius is half of your diameter or given radius).

7 0
3 years ago
At a quiz competition for every question team A answered correctly team B answered 2 questions correctly. The ratio of the numbe
astra-53 [7]

Answer:

1 to 2

Step-by-step explanation:

If A answers 1 question, B will answer 2 questions, making the ratio 1 to 2

7 0
3 years ago
-6+14 =12-8x what is x
navik [9.2K]
8=12-8x
-4=8x
-4÷8=8x÷8
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5 0
3 years ago
Find the area of the figure. PLZ HURRY
Tpy6a [65]

Answer:

27 units²

Step-by-step explanation:

Cut the figure into a 8 by 3 rectangle and triangle.

The area of the rectangle is 8*3 or 24

The area of the triangle is 3 using the formula 1/2bh where the base and height are 3.

Adding those 2 areas together 24+3 will equal 27

7 0
3 years ago
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