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4 years ago

Given a diameter of 24ft what is the exact area of the circle?

Mathematics

1 answer:

anyanavicka [17]4 years ago

8 0

Answer:

452.16

Step-by-step explanation:

$r = \frac{1}{2} \times 24 = 12 \\ \\ \pi \: {r}^{2} \\ = 3.14 \times 12 \times 12 \\ = 452.16$

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The rise and run of the line, state the slope in simplest form

Deffense [45]

Answer:

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1 year ago

HELPP! BRAINLIEST AND 10 POINTS !!

Scrat [10]

Answer:

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3 years ago

Read 2 more answers

Convert 5 yards 2 feet to inches. 5 yd 2 ft = ______ in. *

Zinaida [17]

Answer:

204 inches

Step-by-step explanation:

First, change the 5yd2ft to be just feet.

1 yard = 3 feet

5 yd × 3ft/yd = 15 ft

15 ft + 2ft = 17ft

Next, change to inches.

1 ft = 12 inches

17ft × 12in/ft = 204 in

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2 years ago

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It takes 22 hours for a hosepipe with a flow of 12 litres per minute to fill a swimming pool. How long will it take if its flow

Monica [59]

Answer:

t2 = 52.8 hours

it will take 52.8 hours if its flow is reduced to 5 litres per minute.

Step-by-step explanation:

The volume of the swimming pool can be written as;

Volume V = flow rate × time

V = R×t

V = R1×t1 = R2×t2

R1×t1 = R2×t2

t2 = R1×t1/R2 ........1

Given;

Flow rate R1 = 12 litres per minute

Flow rate R2 = 5 litres per minute

time t1 = 22 hours

Substituting the given values into equation 1;

t2 = R1×t1/R2 = 12×22/5

t2 = 52.8 hours

it will take 52.8 hours if its flow is reduced to 5 litres per minute.

3 0

3 years ago

Arithmetic mean of marks (out of 25) scored by 10 students was 15. One of the student, named Karishma enquired the other 9 stude

erastova [34]

Answer:

Krishna's marks x marks

so...

xˉ=15

xˉ=15n=10

xˉ=15n=10∑x=x+x−8+x−6+x−3+x−1+x+x+2+x+3+x+4+x+6=10x−3

15=10x-3/10

150+3=10x

x=150/10=15.3 marks

Krishna scored 15.3 marks.

hope it helps you sis...

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3 years ago