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
podryga [215]
3 years ago
12

Given a sphere with radius r, the formula 4pi r^2 gives

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

Step-by-step explanation:

That's B:  the surface area.

The volume of the sphere is V = (4/3)πr³; A = 4πr² happens to be the derivative of V with respect to r.

You might be interested in
What’s the surface area of the figure
Karo-lina-s [1.5K]

Answer:444

Step-by-step explanation:

1/2 time base times height times 4

And then base times height times 4

add them together

7 0
3 years ago
Read 2 more answers
Linear equations
yarga [219]
1. x = 2
2. x = 9
3. a = 3
4. x = 13
5. c = 3
6. s = 3
7. x = 7
8. c = 0
9. b = 1
10. c = 4
11. x = 4
12. x = 8
13. x = 12
14. y = 10
15. x = 11
16. x = 10
17. x = 6
18. x = 11
8 0
2 years ago
Help ASAP Please
aleksklad [387]

The probability that a student uses the Internet, given that he or she is in eighth grade is 8/13 or 0.66

<u>Step-by-step explanation:</u>

<u>From the table shown:</u>

  • The students in the eighth grade = 13
  • The eighth grade students using internet = 8

P(student uses the Internet in eighth grade) = P(eighth grade students using internet) / P(total students in the eighth grade)

⇒ 8/13

⇒ 0.66

6 0
3 years ago
The ratio of the measures of the sides of a triangle is 3:4:5. Its perimeter is 48 inches. Find the scale factor as a decimal, a
Trava [24]

Given:

The ratio of the measures of the sides of a triangle is 3:4:5.

Its perimeter is 48 inches.

To find:

The scale factor as a decimal, and the measure of each side of the triangle.

Solution:

Let x be the scale factor. Then the measures of sides of the triangle are 3x, 4x and 5x.

The perimeter of the triangle is 48 inches. It means the sum of all sides of the triangle is 48 inches.

3x+4x+5x=48

12x=48

Divide both sides by 12.

x=\dfrac{48}{12}

x=4

Now, the measures of sides are:

3x=3(4)

3x=12

Similarly,

4x=4(4)

4x=16

And,

5x=5(4)

5x=20

Therefore, the scale factor is 4 and the measures of sides are 12, 16 and 20.

5 0
2 years ago
Read 2 more answers
What is the equation for compound interest
sergey [27]
A = P(1 + r)^n

where A is the amount after n years, P = principal( initial amount), r = annual rate as a decimal fraction and n = number of years 

If interest is accumulated say monthly then it would be

A = P(1 + r/12)^12n

For quarterly replace the 12 by 4

3 0
3 years ago
Other questions:
  • Tabitha earns $8.50 per hour at her summer job. She want to save money to buy a tablet that costs $289 plus 6% sales tax. Tabith
    15·1 answer
  • What is the answer to this problem ?
    8·1 answer
  • In a science class, 40% of the students received a grade of A, 30% received a grade of B, and 20% received a grade of C on a pro
    7·2 answers
  • Find the value of x. DO NOT POST ANY FILES.
    13·1 answer
  • How do you solve addition equations using models?
    5·1 answer
  • Dwight wants to build a new rectangular beet farm, but he is first making a list of items he needs to purchase from the store. D
    5·1 answer
  • A snow cone shop owner is changing his traditional cone-shaped paper cups to cylindrical-shaped paper cups, as shown below. The
    15·1 answer
  • J(m)=2^m−1<br><br> What is j(4)?<br><br> Enter your answer in the box.
    8·1 answer
  • In "The Emperor's New Clothes" what does the opening tell you about the narrator?
    12·1 answer
  • Please answer asap thanks.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!