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
olya-2409 [2.1K]
3 years ago
7

The radius of a small ball is around 4.89796 cm. the radius of a basketball is about 2.45 times larger. what is the ratio of the

surface areas of the small ball and a basketball?
Mathematics
1 answer:
expeople1 [14]3 years ago
6 0
Formula for surface area of a sphere of radius r is A = 4pi*r^2.

The same formula, for the case where the radius is 2.45 times greater, comes out to A = 4pi*[2.45r]^2.

Just find the ratio of

4pi*r^2 to 4pi*[2.45r]^2.  It is 1/6.


You might be interested in
Which expressions are equivalent to (5⋅x)⋅3 ? Drag and drop the equivalent expressions into the box
dimaraw [331]

Answer:

First option.

Third option.

Fourth option.

Step-by-step explanation:

For this exercise is important to remember that equivalent expression have the same value.

Then given the following expression provided in the exercise:

(5x)3

You can find equivalent expression by:

-  Changing the position of 3:

3(5x)     (This matches with the first option)

- Solving the multiplication indicated. Then:

(5x)3=15x      (This matches with the fourth option)

- Writting x3 inside the parentheses:

5(x3)     (This matches with the third option)

4 0
3 years ago
Read 2 more answers
Parallel and perpendicular Lines faqing help me
liberstina [14]

1.

Perpendicular. y=3x+4

Parallel. y=-1/3 x-8/3

2.

Perpendicular. y=-x-1

Parallel. y=x+11

3.

Perpendicular. y=7/4 x+8

Parallel. y=-7/4 x-9/7

4.

Perpendicular. y=4/5 x-3

Parallel. y=-5/4 x+35/2

yeesh, that took a while :) hope I helped!

4 0
3 years ago
I have 30 minutes to complete this and im stuck so pls help out
dimaraw [331]

Answer:

130

Step-by-step explanation:

its basically the same thing

7 0
3 years ago
Read 2 more answers
Find the distance between the two points in simplest radical form. (3,8) and (5, -1)​
ruslelena [56]

Answer: irk

Step-by-step explanation:

7 0
3 years ago
Ava bought 1/2 lb of candy. She is going to share the candy with 2 of her friends. If each of the 3 girls get the same amount, h
dedylja [7]

The three girls will receive 1/6 pound of candy each.

Step-by-step explanation: 1/2 divided by 3 = 1/6

5 0
2 years ago
Other questions:
  • (4,7), (x,19); slope = 3 the pair points lies on the same line with the given slope. Find x
    12·1 answer
  • Whats this angles name?
    12·1 answer
  • Y=-4x+9. (-5,?) (2,?) (4,?) Solve for y using those numbers as x
    11·1 answer
  • An airplane is flying at an altitude of 40,000 feet. To avoid turbulence the pilot descends at a rate of 2,000 feet / minute for
    12·1 answer
  • PLEASE HELP ME!I have a really hard time with algebra 2 and I really need to pass:(
    6·1 answer
  • Can someone please answer this question. Identify the vocabulary word that matches the picture. ​
    7·1 answer
  • The sum of a number g squared and 4 is greater than or equal to −5.
    14·2 answers
  • URGENT PLEASE HELP‼️‼️
    8·1 answer
  • If cosA=4/5 and cosB=3/5 then find a,b,c
    15·2 answers
  • What is the quotient (6x4 − 15x3 + 10x2 − 10x + 4) ÷ (3x2 + 2)?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!