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
a_sh-v [17]
3 years ago
11

Calculate the total surface area of a pipe with inner surface area 1508.5 square cm, outer surface area 2514.2 square cm, and in

ner radius 3 cm and outer radius 5 cm. *
Mathematics
1 answer:
algol [13]3 years ago
8 0

Answer:

The total surface area of the pipe is 4123.31 cm²

Step-by-step explanation:

Total surface area (TSA) of a pipe is calculated as;

Outer area of the pipe + Inner area of the pipe + cross section of the two ends

TSA = 2πRL + 2πrL + 2π(R² - r²)

TSA = 2π(RL + rL + R² - r²)

where;

R is the outer radius

r is the inner radius

L is length of the pipe

Determine the length of the pipe

Outer surface area of the pipe is  calculated as;

outer surface of the pipe = 2πRL

2514.2  = 2πRL

2514.2 = (2π x 5) L

2514.2 = 31.42 L

L = 2514.2 / 31.42

L = 80.02 cm

Finally, determine the total surface area of the pipe

TSA = 2π(RL + rL + R² - r²)

TSA = 2π(5x80.02 + 3x80.02 + 5² - 3²)

TSA =  2π(400.1 + 240.06 + 16)

TSA =  2π(656.16)

TSA = 4123.31 cm²

Therefore, the total surface area of the pipe is 4123.31 cm²

You might be interested in
Which is a pair of vertical angles?
Juliette [100K]
The answer is the letter B
6 0
3 years ago
Roy has bought two square photo frames. The ratio of their sides is 4:1. If PQ = 12 inches, what is AB? A. 12 in. B. 9 in. C. 6
aleksklad [387]

Answer:

D. 3

Step-by-step explanation:

If the ratio of their sides is 4:1, and if PQ=12 inches, then Ab=12/4=3 inches.

6 0
3 years ago
Estimate the amount of time the trip will take. 100 miles at 40 mph 8 and 1/2 hours 2 and 1/2 hours 4 hours 6 and 1/4 hours
Natasha_Volkova [10]

Answer:

2 1/2 hours

Step-by-step explanation:

Divide 100 by 40 and you get 2.5

7 0
3 years ago
A jewelry store is selling a set of 4 pairs of gemstone earrings for $58, including tax. Neva and three of her friends want to b
Marat540 [252]


Each member should pay $14.5, including tax.
4 0
3 years ago
Read 2 more answers
A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. Round answers to nearest tent
AlexFokin [52]

Answer:

39.275

Step-by-step explanation:

the diameter of the semicircle is 10

A semicircle is half a circle, and a quarter circle is 1/4 of a circle.

Perimeter of a semicircle is ¶d/2

= 3.142 x 10/2 = 3.142 x 5 = 15.71

For 2 semicircles that will be 15.71 x 2 = 31.42

For the quarter circle, perimeter is ¶d/4 = 3.142 x 10/4 = 3.142 x 2.5 = 7.855

Total perimeter = 31.42 + 7.855 = 39.275

5 0
3 years ago
Other questions:
  • If 4 people can paint 2 fences in 5 hours, how many hours in all will it take for 8
    13·1 answer
  • How do you multiply 6 x 298 using friendly numbers?
    7·1 answer
  • The family size bottle of sunscreen holds 12 oz of sunscreen. The regular bottle holds 75% less. How many fewer fluid ounces doe
    6·2 answers
  • The area of triangle formed by points of intersection of parabola y=a(x+5)(x−1) with the coordinate axes is 12. Find a if it is
    10·1 answer
  • An object is moving at a speed of 3 meters per minute. Express this speed in miles per year.
    6·1 answer
  • Find the area of the triangle below.
    6·2 answers
  • PLEASE HELP ME IM FAILING MY CLASS
    5·1 answer
  • What is the sum of -4 1/2 + 3 1/4
    13·1 answer
  • Can someone help me find the vertex?
    8·1 answer
  • 7th grade math help me pleasee
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!