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
Lemur [1.5K]
1 year ago
5

Volume of Spheres Volume of Spheres

Mathematics
1 answer:
lukranit [14]1 year ago
7 0

Answer:

V ≈ 2,048 ft^3

<u>Hope this helps :)</u>

Step-by-step explanation:

The symbol ^ means raised to a power.

Formula for Volume of Sphere - V = 4/3 π r^3

1. To find the volume of a sphere, first find the radius with the given diameter 16.

16 ÷ 2 = 8

Radius = 8

2. Substitute r for 8 and solve, and 3 will be used for π.

V ≈ 4/3 • 3 • 8^3

V ≈ 4/3 • 3 • 512

V ≈ 4/3 • 1536

V ≈ 6144/3

V ≈ 2,048

You might be interested in
A researcher wishes to​ estimate, with 99​% ​confidence, the population proportion of adults who think the president of their co
scoray [572]

Answer:

a. n=4148

b. n=3909

c. The sample size is smaller if a known proportion from prior study is used. The difference in sample sizes is 239

Step-by-step explanation:

a. For sample where no preliminary estimate is given, the minimum sample size is calculated using the formula:

n=p(1-p)(\frac{z}{ME})^2

Where:

  • ME=Margin of error
  • p= is the assumed proportion

#Let p=0.5, substitute in the formula to solve for n:

n=0.5(1-0.5)\times (2.576/0.02)^2\\\\=4147.36\approx 4148

Hence, the minimum sample size is 4148

b. If given a preliminary estimate p=0.38, we use the same formula but substitute p with the given value:

n=p(1-p)(z/ME)^2\\\\=0.38(1-0.38)(2.576/0.02)^2\\\\=3908.47\approx3909

Hence, the minimum sample size is 3909

c. Comparing the sample sizes from a and b:

n_{0.5}>n_{0.38}\\\\n_{0.5}-n_{0.38}=4148-3909=239

Hence, the actual sample size is smaller for a known proportion from prior a prior study.

8 0
3 years ago
Help help help help help
QveST [7]

Answer:

A)

Step-by-step explanation:

Let me know if anything is unclear :)

6 0
2 years ago
X to the 2nd power minus 6 equals 1
alexandr402 [8]

Answer:

2.646

Step-by-step explanation:

You have to 6 to the 1 and then take the square root of the number which is seven leaving you with 2.646

3 0
2 years ago
Read 2 more answers
How do I write 208,000,478 in expanded form
Rama09 [41]

200,000,000

8,000,000

478

all added together

4 0
3 years ago
Read 2 more answers
Help, stuck on this math problem!
alexgriva [62]

Answer: $498.08

Please Mark me as Brainliest

6 0
3 years ago
Other questions:
  • Help me!!!! Please!!!!! Math!!!!
    8·1 answer
  • That gives the equation Ax=C which is a vertical line, so the slope is undefined.For the equation Ax + By = C (where A, B, C are
    15·1 answer
  • The number of hours, t, that bacteria spread 10-fold can be modeled by the equation B(t) = B0(10)2t. There are 25 bacteria prese
    5·1 answer
  • Solve a quadratic equation using the zero product property
    9·1 answer
  • When Klorina swims with the current, she swims 10 km in 2 h. Against the current, she can swim only 8 km in the same time. How f
    13·1 answer
  • What are the zeros of 27x^3-1
    11·1 answer
  • Which number is equivalent to 0.45? line over .45
    12·1 answer
  • Please help as soon as possible <br>I WILL MARK YOU AS BRAINLIEST ​
    10·2 answers
  • Please i need help with it <br> 3(x−2)+5x=26
    6·2 answers
  • Which of the following is equal to 7 1/4?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!