All categories

3 years ago

HELP WITH 20 PLEASE!

Mathematics

1 answer:

WINSTONCH [101]3 years ago

6 0

← BACK PRINT + TEXT SIZE – SEARCH HOME

search

Question from Amanda, a parent:

what is the area of a circle with a circumference of 3000 metres?

Amanda,

The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r.

If we "solve for r" in the second equation, we have r = C / (2 π ). Now we use this to replace r in the first equation: A = π [ C / (2 π ) ]2.

When we simplify this, we get A = C2 / (4 π).

Now you can put your value of C into this equation and find A. Remember, π is about 3.1416.

You might be interested in

Use the three steps to solve the problem. Mrs. West is 14 years younger than her aunt. If Mrs. West's age in years is as much be

soldi70 [24.7K]

43 and 57. Because 43 is 3 above 40 and 57 is 3 below 60.

3 0

3 years ago

What the coefficient in the equation 3x + 2(x + 2) + 4

Levart [38]

Answer:

The coefficient is 3

Step-by-step explanation:

3 0

2 years ago

18. Find the length of the segment indicated. Round your answer to the

Usimov [2.4K]

Answer:

b. 6.2

Step-by-step explanation:

x =√18.2²-17.1² =√331.24- 292.41

= √38.83 = 6.2

8 0

3 years ago

Keisha went into a park at 1:30 pm she hiked for 1 hour 35 minutes. Then she went to the picnic area for 45 minutes and left the

nata0808 [166]

Answer:

3:50pm

Time Keisha went to the park- 1:30pm

Time spent for hiking- 1hour 35 minutes

Time spent at the picnic area- 45 minutes

1: 30pm

+1. 35min

2: 65pm

But 60 minutes is 1 hour so the 65 will be changed to 1 hour 5 minutes making it

3: 05pm

+0: 45min

3: 50pm

Hence the time Keisha left the park was 3:50pm

3 0

3 years ago

-4 (-3x-2)+4=60 can you help me plz

Ede4ka [16]

X = 4.

You have to distribute by multiplying -4 by the numbers between -3x and -2.

12x + 8 =60

Subtract the 8 from 60 to simplify the equation.

12x = 48

Divide 12 by 48 and get 4.

x=4

8 0

3 years ago