1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sphinxa [80]
4 years ago
10

Can someone help me with this problem?

Mathematics
1 answer:
____ [38]4 years ago
5 0

Answer:

88

Step-by-step explanation:

First find the area of the fountain using the area formula of a circle.

The formula for area is A = \pi r^2. Here the radius is 5 ft. So the area is A =\pi r^2 = \pi 5^ 2= 25\pi = 78.5.

We will subtract the area of 78.5 from the larger circle of the brick path and fountain to find only the area of the brick path.

The larger circle has an area of A =\pi r^2 = \pi 9^ 2= 81\pi = 254.34 where the radius is 9ft.

Subtract to find the area of the path: 254.34 - 78.5 = 175.84. Divide this area by 2 to find the number of bricks needed since each brick is 2 square feet.

175.84/2 = 87.92 = 88 bricks

You might be interested in
The breakdown of a sample of a chemical compound is represented by the function p(t) = 500 (0.25)^t, where p(t) represents the n
ludmilkaskok [199]

Given:

The function is:

p(t)=500(0.25)^t

Where p(t) represents the number of milligrams of the substance and t represents the time.

To find:

The correct explanation for the number 0.25 and 500 in the given function.

Solution:

The general exponential function is:

y=ab^x           ...(i)

Where, a is the initial value and b is the growth/decay factor. If 0, then decay factor and if b>1, then growth factor.

We have,

p(t)=500(0.25)^t           ...(ii)

On comparing (i) and (ii), we get

a=500, it means initial there are 500 milligrams of the substance.

b=0.25, this value is less than 1, it means the substance is decreasing by a factor of 0.25.

Therefore, 0.25 means the substance is decreasing by a factor of 0.25 and 500 means the initial value of substance is 500 milligram.

3 0
3 years ago
5 1/4 divided by 5/8 pleaseee
natulia [17]

Answer:

8.4 (42/5)

well you know that 1/4 as a decimal is .25 so take the 5 and put it in front of the .25, so you will have 5.25. And 5/8 as a decimal is .625. then just divide them by using long division or a calculator.

8 0
3 years ago
I need help with this qustion
Fudgin [204]

I belive that the answer my be c but how they worded it made my probablitity calculations a bit harder.

5 0
3 years ago
Read 2 more answers
Find the distance between the points given.<br> (2, 2) and (5,5)
mart [117]

Step-by-step explanation:

d =  \sqrt{(x1  -  x ) {}^{2} + (y1 - y {}^{2}  ) }

(5-2)^2+(5-2)^2=

\sqrt{9 + 9}  =  \sqrt{18}  = 4.42

4 0
3 years ago
Read 2 more answers
SET ME DA ANSWERRRZZZ PLEASE!!!
inna [77]

Answer:

I believe it is 42cm^2  

8 0
3 years ago
Other questions:
  • HELP!
    6·1 answer
  • Jacob makes the following statement: "I have a 60% chance of being selected as the captain of the baseball team and a 20% chance
    12·1 answer
  • Find the volume of a cylinder with a diameter of 8 inches and a height that is three times the radius. Use 3.14 for pi and round
    12·1 answer
  • (d) A drinks machine dispenses coffee into cups. A sign on the machine indicates that each cup contains 100ml of coffee. The mac
    6·1 answer
  • Is -4.1 grader than -31/2?
    13·2 answers
  • What was Mike's average rate of descent over his last three hours?
    6·1 answer
  • A bag contains 11 cards numbered 1 through 11. A card is randomly chosen from the bag. What is the probability that the card has
    13·1 answer
  • A teacher wants to buy mini candy canes for her students. She wants each of her 32 students to have 8 mini candy canes. How many
    13·1 answer
  • Nigel has 2 dogs one eats 21/2 pounds of food each week. The other eats 1 3/8 pounds a week together how much food do the dogs e
    5·1 answer
  • F(x)=x+1/x-2<br> find the inverse
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!