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
PtichkaEL [24]
3 years ago
10

I need help pls is only 1 question

Mathematics
1 answer:
Yanka [14]3 years ago
4 0

Answer:

T = 1300

Step-by-step explanation:

Given

Radius, r = 9\ in

Height, h = 14\ in

<em>See attachment</em>

<em></em>

Required

Determine the total surface area, T

T is calculated using:

T = 2\pi r(r + h)

Substitute values for r and h

T = 2\pi  * 9(9 + 14)

T = 2\pi  * 9(23)

Remove bracket

T = 2\pi  * 9*23

T = 2\pi  * 207

Take \pi = 3.14

So, we have:

T = 2 * 3.14 * 207

T = 1299.96

T = 1300 --- approximated.

<em>Hence, the surface area is 1300 square inch</em>

You might be interested in
If a mason can make 12 hollow blocks in 3 h, how many hollow blocks can he make in 10 h?
antoniya [11.8K]

Answer:

40 hollow blocks

Step-by-step explanation:

12/3= 4 hollow blocks per hour

10x4=40 hollow blocks in 10 hours

7 0
2 years ago
ABCD is a quadrilateral inscribed in a circle, as shown below:
Sophie [7]

I think it's B but I'm not 100% sure

4 0
2 years ago
Hey! how's your Saturday going :) <br> (if it's Saturday for you)
Bad White [126]

Answer:

great :) wbu

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
1. Howard's CD House sells new CDs for $15 each and used CDs for $6 each. Bre'anna bought 51 CDs and spent a
Yanka [14]

The numbers of new CDs is 30 and the old CDs is 21.

To solve this problem, we have to write a system of equations in which we would know the numbers of each types of CD she bought.

<h3>System of Equations</h3>

This is used to solve a series or complex of word problems in which we can represent in a mathematical statements;

  • Let n represents numbers of new CDs
  • Let u represents numbers of old CDs

The equations can be represented as

n + u = 51 ...equation(i)\\15n + 6u = 576 ... equation(ii)

Let's take equation (i)

Making n the subject of formula

n + u = 51\\n = 51 - u...equation(iii)

we can put equation (iii) into equation (ii)

15n + 6u =576\\n = 51 - u\\15(51 - u) + 6u = 576\\765-15u + 6u = 576\\collect like terms\\765-576=15u - 6u\\189=9u\\9u/9 = 189/9\\u = 21

Let's put the value of u into equation (i)

n + u = 51\\u = 21\\n + 21 = 51\\n = 51 - 21\\n = 30

From the calculations above, the numbers of new CDs is 30 and the old CDs is 21.

Learn more on system of equations here;

brainly.com/question/13729904

4 0
3 years ago
Didn’t pay attention to math today (and was too lazy to do my own hw)
amm1812

Answer:

120 bhoo

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the expression. 2 · 16 + 24 ÷ 4 80 38 134
    6·2 answers
  • Information gathered from observing a plant grow 3 cm over a two-week period results in:
    12·1 answer
  • For the function y = -2+5sin(pi/12(x-2)), what is the maximum value?
    9·2 answers
  • How many triangles form by the diagonals from a fixed vertex has 11 12 13 14 15 sided polygon
    6·1 answer
  • The quotient of a number and -7, decreased by 2, is 10. Find the number. Show work
    8·1 answer
  • ou intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis test
    9·1 answer
  • Please help !!!!!!!!!!!
    10·1 answer
  • A train left William's town at 7:35 P.M. The train traveled for 1 hour and 30 minutes to Richmond. Then it traveled 3 hours and
    15·1 answer
  • Write the ratio 5 to 8 as a fraction, decimal and percent.<br> omg please help
    5·1 answer
  • Brainliest plus 20 points just answer these 4 questions (Math)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!