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
iren [92.7K]
3 years ago
15

The sphere below has a radius of 2.5 inches and an approximate volume of 65.42 cubic inches.

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

Part a: The radius of the second sphere is 5 inches.

Part b: The volume of the second sphere is 523.33 in³

Part c; The radius of the third sphere is 1.875 inches.

Part d: The volume of the third sphere is 27.59 in³

Explanation:

Given that the radius of the sphere is 2.5 inches.

Part a: We need to determine the radius of the second sphere.

Given that the second sphere has twice the radius of the given sphere.

Radius of the second sphere = 2 × 2.5 = 5 inches

Thus, the radius of the second sphere is 5 inches.

Part b: we need to determine the volume of the second sphere.

The formula to find the volume of the sphere is given by

V=\frac{4}{3}  \pi r^3

Substituting \pi=3.14 and r=5 , we get,

V=\frac{4}{3} (3.14)(125)

V=\frac{1580}{3}

V=523.3333 \ in^3

Rounding off to two decimal places, we have,

V=523.33 \ in^3

Thus, the volume of the second sphere is 523.33 in³

Part c: We need to determine the radius of the third sphere

Given that the third sphere has a diameter that is three-fourths of the diameter of the given sphere.

Hence, we have,

Diameter of the third sphere = \frac{3}{4} (5)=3.75

Radius of the third sphere = \frac{3.75}{2} =1.875

Thus, the radius of the third sphere is 1.875 inches

Part d: We need to determine the volume of the third sphere

The formula to find the volume of the sphere is given by

V=\frac{4}{3}  \pi r^3

Substituting \pi=3.14 and r=1.875 , we get,

V=\frac{4}{3} (3.14)(1.875)^3

V=\frac{4}{3} (3.14)(6.59)

V=27.5901 \ in^3

Rounding off to two decimal places, we have,

V=27.59 \ in^3

Thus, the volume of the third sphere is 27.59 in³

You might be interested in
Use the graph that is provided
Jet001 [13]

Answer:

Step-by-step explanation:

hmm idk bro thats wack

5 0
2 years ago
PLEASE HELP ME OUT!!!!!!!!!!
Semmy [17]

Answer:

Exponential

Step-by-step explanation:

- Linear is a straight line no matter what.

- Quadratic lines makes a u or v shape that opens up, down, left, or right.

- Exponential is like a slanted 45° clockwise u and a bit stretched horizontally.

- Square root lines on a graph, looks more like a slanted L 90° clockwise.

- Inverse Variation would show its inverse, same as a mirror, it would be something similar to a hyperbola.

Hope This Helps!

6 0
2 years ago
Wendy has 5 and 1 over 3 feet of ribbon. How many 2 over 3 foot pieces can Wendy cut from the 5 and 1 over 3 feet of ribbon? Sho
denis-greek [22]

Answer:

Your answer is 8

Step-by-step explanation:

First you have to convert the mixed number into an improper fraction. To do this, multiply the denominator by the whole number. Then add the numerator and put that answer in a fraction over the original. So it would be 3*5=15+1=16/3. So now that the denominators are the same, all you need to do is see how many times 2 goes into 16. 16/2 which is 8. Answer = 8

6 0
3 years ago
Given f(x)=x^2-2x find f(6)
-BARSIC- [3]

Step-by-step explanation:

In the picture, I hope that it's a clear solution.

7 0
2 years ago
Read 2 more answers
Suppose there are 21 students in your class if the draws two names at random
Gala2k [10]

Answer:

2/21 is the most logical answer

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Which of the following about the Crusades is not true? (1 point)
    9·1 answer
  • URGENT!!!! You must create a 6-character password using the letters A-Z and the numbers 0-9. Characters may be repeated. How man
    13·1 answer
  • What is the next number in the sequence 9....3....1....1/3?
    7·2 answers
  • Heather brought $7.14 to school. She then spent $1.08 to buy lunch. How much money does she have left?
    10·2 answers
  • Are these answers right Or wrong
    12·1 answer
  • What does square mile mean
    13·2 answers
  • The sum of two numbers is 58. The larger number is 6 more than the smaller number. What are the numbers?
    8·2 answers
  • 32 = 4(n – 5) and -s + 11 = 17 please solved Both of the following​
    12·2 answers
  • Can someone help me with this please ?
    9·1 answer
  • Which of these is NOT a method for proving that a quadrilateral is a parallelogram?A.show that one pair of opposite sides is par
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!