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
Ivahew [28]
2 years ago
9

PLEASE ANSWER ASAP !!!!! WILL GIVE BRAINLIEST

Mathematics
2 answers:
Elanso [62]2 years ago
8 0

Answer:

\sqrt{\frac{3V}{\pi*h}}  = r

Step-by-step explanation:

V = \frac{1}{3}\pi r^2h\\3V = \pi r^2h\\\frac{3V}{\pi*h}  = r^2\\\sqrt{\frac{3V}{\pi*h}} = r

PSYCHO15rus [73]2 years ago
5 0

Answer:

r = +/- \sqrt{\frac{3v}{\pi h}\}

Step-by-step explanation:

v = 1/3 pi r^2 h

multiply both sides by 3

3v = pi r^2 h

dived both sides by pi h

3v/pi h = r^2

take sqrt of both sides

+/- sqrt( 3v/pi h) = r

You might be interested in
When 21 is subtracted from the square of a number, the result is 4 times the number. Find the positive solution.
wel

Let x = your number.

x^2 - 21 = 4x. Subtract 4x from both sides.

x^2 - 4x - 21 = 0. Factor.

(x - 7) (x + 3) = 0. Set each term to 0.

x + 3 = 0. Subtract 3 from both sides.

x = -3. This is the negative solution.

Set the other term equal to zero.

x - 7 = 0. Add 7 to each side.

x = 7. This is the positive solution.

7 0
3 years ago
Which table shows a proportional relationship between x and y?
barxatty [35]
I would say a but not 100% sure.
3 0
3 years ago
Read 2 more answers
2 Two of the angles of this polygon are 100°. All the other angles are equal. (100° 1000 Calculate the size of the unmarked angl
Airida [17]

Answer: 140 step by step

Step-by-step explanation:

3 0
3 years ago
To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun
QveST [7]

Answer:

We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 31.7 milligrams

Sample mean, \bar{x} = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s =  2.8 milligrams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}

We use One-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429

Now, t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860

Since,                  

t_{stat} < t_{critical}

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0
3 years ago
7w = 49<br><br> w = fjkdgnsdjklngdngfklngjktrnsrg
aleksandrvk [35]

Answer:

W=7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • 3 times of 4 yards 2 foot
    11·1 answer
  • On a coordinate plane, triangle A B C is shown. Point A is at (3, 4), point B is at (negative 5, negative 2), and point C is at
    5·2 answers
  • The slope is -5/3. What is the equation for the slope?
    11·1 answer
  • A computer password system requires 6 DIFFERENT letters (case sensitive) from the 26 alphabets. For example, AAAAAA and aaaaaa a
    13·1 answer
  • If R = { (x, y) is an element of N, x is an element of N, y is an element of N / x-y is divisible by 5 } then show that R is an
    12·1 answer
  • HELP PLEASE THANK YOU
    14·2 answers
  • Please help me on this.
    10·1 answer
  • The circumscribing circle O and the inscribed circle of triangle ABC have the same center. Which of the following constructions
    8·2 answers
  • The O'Neals purchased 2 adult and
    7·1 answer
  • Sam buys 3 pounds of apples for $6. what is the unit rate
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!