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
Butoxors [25]
3 years ago
15

The pillars in front of Mr. Jefferson's home are shaped like cylinders. The pillars have a height of 24 ft and a radius of 8 in.

How many square feet of paint are needed to completely cover each pillar? (Do not include the bases.) A. about 100.5 ft2 B. about 1206 ft2 C. about 1608 ft2 D. about 3 ft2
Mathematics
1 answer:
GREYUIT [131]3 years ago
7 0

Answer:

  • <u>Option A. about 100.5ft²</u>

<u />

Explanation:

Since the <em>bases</em> must not be painted, their areas are <em>not included</em> in the calculation.

The <em>surface</em> to paint, of each pillar, is equal to the lateral area of a<em> cylinder </em>with he dimensions given.

The formula for the laeral area of a cylinder is:

        Lateral\text{ }area=2\pi \times radius \times height

Substitute including the conversion factor to convert inches to feet:

        Lateral\text{ }area=2\pi \times 8in\times 1ft/12in \times 24ft=100.5ft^2

You might be interested in
Why is it helpful to represent fractions and division with models? (pls make answer pretty long, thanks :)
eimsori [14]

Answer:

Whether you're teaching the meaning of fractions or fraction operations, visual models can help students connect fractions to what they already know. Division is an essential foundation for fractions. Once students can divide objects into equal groups, they can begin to grasp dividing a whole into equal parts.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A dozen plain hats cost 3.60,what is the unit rate of a hat?
deff fn [24]
I think the answer should be 12.
7 0
3 years ago
Read 2 more answers
10x^2+50 factoring by taking out the greatest common factor
inessss [21]

Answer:

The greatest common factor is 10

Step-by-step explanation:

Once you factor it out, you have :

10(x^2+5)

8 0
3 years ago
How many different twotwo​-letter passwords can be formed from the letters
Anna [14]

Answer:

70

Step-by-step explanation:

GIVEN: two two​-letter passwords can be formed from the letters  A, B, C, D, E, F, G and H.

TO FIND: How many different two two​-letter passwords can be formed if no repetition of letters is​ allowed.

SOLUTION:

Total number of different letters =8

for two two​-letter passwords 4 different are required.

Number of ways of selecting 4 different letters from 8 letters=^8C_4

                                                                                                   =\frac{8!}{4!4!}

                                                                                                  =70

Hence there are 70 different two-letter passwords can be formed using 8 letters.

5 0
3 years ago
Pleaseee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!
Aloiza [94]
Srry im late it’s 8 mark Brainly ist
3 0
3 years ago
Other questions:
  • A jar contains 4 white marbles, 6 red marbles, 8 black marbles and 2 green marbles. If a marble is
    10·1 answer
  • I don't get what it is asking me to do
    12·1 answer
  • The function ƒ(x ) = -3x + 5 is represented by which set of ordered pairs?
    10·2 answers
  • 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5
    5·1 answer
  • (2x+1)(2x-1) find the product
    6·1 answer
  • Two forces with magnitudes of 200 and 100 pounds act on an object at angles of 60° and 170° respectively. Find the direction and
    5·1 answer
  • Which equation represents a line that passes through (4.) and has a slope of
    15·1 answer
  • (32 minus 20) divided by 4
    10·2 answers
  • Select all the correct answers. Consider the graph of the function f(x)=2^x. Which statements describe key features of function
    5·1 answer
  • What is the unit rate of change of d with respect to t? (That is, a change of 1 unit in t will correspond to a change of how man
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!