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
DENIUS [597]
3 years ago
11

What is the surface area of s sphere with a radius of 4ft

Mathematics
1 answer:
erik [133]3 years ago
8 0
The formula you use to find the surface area of a sphere is A=4 π r^2
4×π = 12.5663706143
r = 4
4^2 = 16
12.5663706143 × 16 = 201.061929829
Final answer: the surface area is about 201 ft.
You might be interested in
Solve ax - by = f for x
zhannawk [14.2K]
For this case we have the following expression:
 ax - by = f

 We must clear the value of x in the expression.
 For this, we must follow the following steps:
 1) add by on both sides of the equation:
 ax - by + by = f + by
ax = f + by
 2) multiply both sides by 1 / a:
 (1 / a) * ax = (1 / a) f + (1 / a) by

x = (1 / a) f + (1 / a) by
 3) Common factor 1 / a:
 x = (1 / a) * (f + by)
 Answer:
 
x = (1 / a) * (f + by)
7 0
3 years ago
Harleys house has a value of £160000 correct to 2 significant figures
My name is Ann [436]

Answer:

155,000

159,999

Step-by-step explanation:

In order to correct to 2 significant figures, look at the third figure, if the number is greater or equal to 5, add 1 to the ten thousand figure. If this is not the case, add zero. Replace all the figures before the thousand figure with zero. i.e. the hundred ten, unit

e.g. Rounding off 10,999 to the nearest thousand is 11,000

In this example, the least figure, the thousand figure should have to be rounded off to 2 significant figures is 5 and the greatest figure it can have is 9

6 0
3 years ago
Oscar spent 2/3 hours each night doing homework for five nights this week. How many hours of homework did Oscar complete this we
jeka94
B because 2/3 hours is 40 mins 40 x 5 = 200 200 is 3 hours and 20 mins which is 1/3
3 0
3 years ago
Donald has xxx twenty-dollar bills and 111 ten-dollar bill.<br> How much money does Donald have?
elena-14-01-66 [18.8K]

Answer:

all we know is he has $1,110 in tens because you dont give me how many twenty dollar bills

Step-by-step explanation:

111*10=1110

7 0
4 years ago
In the image below, line q is parallel to liner, and line s is a transversal.
musickatia [10]

Answer:

equal

alternate exterior angles

Step-by-step explanation:

The measure of given angles are equal to each other because they are alternate exterior angles,

8 0
3 years ago
Read 2 more answers
Other questions:
  • If x = 5, find the value of<br> a) x2<br> b) (x + 3)2
    11·1 answer
  • Write the function , √(x^3+6)/√(x^3-9) as a composition of three or more non-identity functions.
    9·1 answer
  • Answer and maybe an explanation.Thanks in advance.
    5·1 answer
  • A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 40% of this population prefers t
    9·2 answers
  • Explain 657 divide by 3 using partial quotient
    15·1 answer
  • Find the value of x - 6y when x = -2 and y = -1/2
    14·2 answers
  • The illustration below shows the graph of yyy as a function of xxx.
    5·2 answers
  • 3/1 + 1/3<br><br> What is the answer to this?
    15·1 answer
  • Which triangles are similar to triangle ABC?
    15·1 answer
  • A strain of bacterial cells doubles inpopulation every 2 days. A single cell is placed in a dish with sufficient nutrients to su
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!