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
Serga [27]
3 years ago
10

Calculate the area of a circle with a diameter of 8 feet

Mathematics
2 answers:
sattari [20]3 years ago
4 0

Answer: 50.27

Step-by-step explanation:

Area = pi r^2

= pi x 16

svlad2 [7]3 years ago
4 0

Answer:

50.265 ft^{2}

Step-by-step explanation:

The formula of the area of a circle is \pi r^{2} and the diameter is double the amount as the radius, so the radius would be 4 feet. 4 squared is 16. Multiply that by pi to get your answer, 50.265ft^{2}.

You might be interested in
If the number 561 is multiplied by 103, in what place value will the 1 be?
Zolol [24]
561 x 103 = 57783, so the place value of the 1 will be 3. :)
6 0
3 years ago
Read 2 more answers
The summer has ended and it’s time to drain the swimming pool. 20 minutes after pulling the plug, there is still 45 000L of wate
WITCHER [35]

Answer:

  a) -900 L/min

  b) 63000 L

  c) v = -900t +63000

  d) 7200 L

Step-by-step explanation:

a) You are given two points on the curve of volume vs. time:

  (t, v) = (20, 45000) and (70, 0)

The rate of change is ...

  Δv/Δt = (0 -45000)/(70 -20) = -45000/50 = -900 . . . . liters per minute

__

b) In the first 20 minutes, the change in volume was ...

  (20 min)(-900 L/min) = -18000 L

So, the initial volume was ...

  initial volume -18000 = 45000

  initial volume = 63,000 . . . . liters

__

c) Since we have the slope and the intercept, we can write the equation in slope-intercept form:

  v = -900t +63000

__

d) Put the number in the equation and do the arithmetic.

When t=62, the amount remaining is ...

  v = -900(62) +63000 = -55800 +63000 = 7200

7200 L remain after 62 minutes.

6 0
3 years ago
Solve for b. A=h(a+b)/2
andrey2020 [161]

Answer:

b=2a/h

Step-by-step explanation:

3 0
3 years ago
Find the percent of increase from 1.5 inches to 6 inches.
jeyben [28]
Since 6/1.5 is 4. It increased 400%.
7 0
3 years ago
An ant can travel at a constant speed of 980 inches every 5 minutes. How far does the ant travel in 1 minute? The ant travels 19
ycow [4]

Answer:

The ant travels 1,372 inches in 7 minutes.

Step-by-step explanation:

Since 1 minute = 196 inches

1 × 7 = 7

196 × 7 = 1,372

8 0
2 years ago
Other questions:
  • The general manager of an engineering firm wants to know whether a technical artist’s experience influences the quality of his o
    15·1 answer
  • Suppose you just purchased a digital music player and have put 10 tracks on it. After listening to them you decide that you like
    10·1 answer
  • Algebraic expression for 15x + 8
    8·1 answer
  • Thor and Zeus strike with their hammers. The higher they raise their hammers before they strike, the louder the sound of the str
    12·2 answers
  • Solve the inequality and graph the solution<br> -10 &gt;= -2z
    11·1 answer
  • 2x10+6x13x(1/100)+9x(1/1000) into a decimal
    5·2 answers
  • Which point is on the graph of f (x)=4^x
    12·2 answers
  • A dolphin swims 665,280 feet in 3 hours. Use the formula d = rt, where d represents distance, r represents rate, and t represent
    12·1 answer
  • Write the number in scientific notation. 0.00000625
    10·2 answers
  • the length of each side of an eqalateral triangle is increased by 5 inches, so the perimeter is now 60 inches. write and solve a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!