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Svetradugi [14.3K]

3 years ago

12

"If a circular garden with a radius of 3 ft. is bordered by a circular sidewalk that is 2 ft. wide, what is the area of the side

walk? Leave your answer it terms of pi." Please show work!

1 answer:

Ronch [10]3 years ago

8 0

5*5=25*3.14=78.5
3*3=9*3.14=28.26
---------
49.76

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The U.S. annual energy consumption is roughly 1 x 1020 joules per a year. If there are 350,000,000 people in the U.S., express t

AnnZ [28]

Answer with Step-by-step explanation:

Given the total energy consumption for all of the population is

$E=1\times 10^{20}Joules$

Thus energy consumed by each person per year can be obtained by dividing the total energy consumed by the total population Thus we get

$E_{per\cdot person}=\frac{1\times 10^{20}}{350\times 10^{6}}\\\\E_{per\cdot person}=28.57\times 10^{10}Joules/Year$

Now the energy consumed in each second assuming that there are 365 days in each year equals

$E_{second}=\frac{28.57\times 10^{10}}{365\times 24\times 3600}\\\\E_{second}=9059.49Joules$

4 0

4 years ago

An athlete runs 1, miles in 7 minutes. At this rate, how long does it take the athlete to run 1 mile?

Igoryamba

Answer:

My closest calculation is 74 minutes

Step-by-step explanation:

08 : 59.52

min : sec

Speed

0.1112 miles per minute

=

6.67 miles per hour

8 0

3 years ago

What is the ‘r’ value of the following sequence: 6, 18, 54, 162…?

goblinko [34]

R = 3
6x3=18
18x3=54
54x3=162 ...

5 0

3 years ago

A building in the shape of a pyramid was recently built. Each side of the pyramid’s square base has a length of 40 feet and the

Alex

Answer:32,000ft^3

Step-by-step explanation:

3 0

3 years ago

Helpppppppp pleaseeeee fasttt

Marta_Voda [28]

Answer:

where is the question

Step-by-step explanation:

5 0

3 years ago