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
alexandr402 [8]
2 years ago
14

A sphere has diameter 28 cm. If the diameter is divided by 2, what is the effect on the surface area?

Mathematics
1 answer:
spayn [35]2 years ago
4 0

Answer:

The surface area is divided by 4.

Step-by-step explanation:

Surface area of a sphere is 4πr².

When the diameter is 28 the radius is 14. So: 4π(14)² = 784π

If you cut the diameter in half you get 14. The radius is now 7.

4π(7)² = 196π.

784/4 = 196 so divided by 4.

You might be interested in
Find the distance between (2.0) and (8, -3)
zvonat [6]

Answer:

6, 3

Step-by-step explanation:

4 0
2 years ago
How do you find the area of a triangle?
guapka [62]
The formula to find the area of a triangle is

\frac{h_{b}b }{2}

If you have any more questions let me know!
7 0
3 years ago
Read 2 more answers
HELP PLEASE 10 POINTS!!!!!!!!!!!
LiRa [457]

Answer:

0.0000000642 = 6.42 \times  {10}^{ - 8}

I hope I helped you^_^

5 0
3 years ago
Read 2 more answers
Write the sum of 5x2 + 2x - 10 and 2x2 + 6 as a polynomial in standard form.
vaieri [72.5K]

Answer:

7x^2+2x-4

Step-by-step explanation:

a standard form is ax+by=c

5x^2 add 2x^2=7x^2 then -2x but when you have a -10 +6 you get -4 giving you the answer of 7x^2 +2x -4

7 0
3 years ago
Read 2 more answers
identify an equation in point slope form for the line perpedicular to y=1/4x-7 that passes through (-2,-6)​
Art [367]

Answer:

perp. -4

y + 6 = -4(x + 2)

y + 6 = -4x - 8

y = -4x - 14

6 0
2 years ago
Other questions:
  • What is the sum of 4,506 and 5,933
    7·2 answers
  • True or false: 4[6 2(6 4)]<20
    15·1 answer
  • PLEASE HELP ME PLEASE
    9·1 answer
  • What interger is equivalent to -(-7)?
    15·1 answer
  • ned was trying to beat his old score of twenty-one points in a video game .if he scores exactly five points each round,how many
    12·1 answer
  • How long is line UW?
    12·1 answer
  • Select Is a Function or Is not a Function to correctly classify each relation.
    9·1 answer
  • 4(1-x)+2x=-3(x+1 solve for x
    7·1 answer
  • How is the relationship between the formula for the volume of a cone and the formula for the volume of acylinder
    10·1 answer
  • Find a Job !!20 POINTS!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!