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
Gnoma [55]
3 years ago
8

A cylinder has a volume of 486 pi ft^3. if the height is 6ft what is the diameter

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

Answer:

18

Step-by-step explanation:

Alright so here you have to work backwards. the volume of a cylinder is pi*r^2*h.

Your equation: 486 pi = pi*r^2*6

You know the height is 6 feet, so you can get rid of the 6 feet hanging off of your equation by dividing both sides by 6:

81 pi = pi*r^2

Now you notice that both sides have pi. You can eliminate it by dividing both sides by pi:

81 = r^2

To isolate the r, radius, you have to take the square root of both sides, since a square root is the inverse operation of squaring. You get:

9 = r

Now that you have the radius, you can find the diameter by multiplying the radius by 2, because a diameter = 2 * the radius:

18 = d

Hope this helps!

You might be interested in
I need help finding the domain and range of this graph
SIZIF [17.4K]

Answer:

Step-by-step explanation:

Okay so to find the domain and range we need to find the x values and the y values: the domain is x and the range is y. Therefore the start of our x values can be concluded as -5 and the end is 5, so our domain will be -5 < x < 5: Note, I couldn't put the less than or equal to symbol. SO now our range is the values that are up and down, the range does down at 1 and the range is the highest at 3 so we can determine the range is 1 < y < 3. This is a continuous graph, so there is continuous x values and y values in this graph, so it's simple to use the start and the end of the domain and range followed by the possible y and x values which is represented by y and x.

Hope this helps. :)

8 0
3 years ago
Ava deposited $3,500 in an account that earned 4.375% interest
Bumek [7]

Answer:

4335.61

Step-by-step explanation:

Using the equation A = P (1 + r/n)^nt

lets fill  in the variables,

P (principal) is 3500.00

r (rate) is .04375  - we do this in decimal form

n (number of times interest is doubled) here it is annually, could be monthly or daily too, but we are told annually, so we use 1

t (time) is 5 years

So:   3500(1+.04375/1) ^ 1(5)

pemdas

parenthesis first 1 +.04375/1 = 1.04375

exponents next 1 x 5 = 5

so now we have 3500 (1.04375) ^5

take 1.04375 to the power of 5 (pemdas) then multiplication

= 3500(1.2387465058)  or

A = 4335.61

This is the same result as calculating simple interest for 5 years but each year calculating off the new Principal amount that includes interest.

3500 x  .04375 = 153.125  or 3653.125   *(year one)

159.82 = 3812.95  

166.82 = 3979.77

174.11 = 4153.88  

181.73 = 4335.61

5 0
2 years ago
A factory made 4250
vodomira [7]

Step-by-step explanation:

Total amount of cookies = 4250

butter cookies, b

Almond cookies, a

Chocolate cookies, c

It made 715 more butter cookies than

almond cookies

b = a + 715

It made 5 times as many chocolate cookies as almond

5a = c

Total amount of cookies

= a + b + c

= a + (a+715) + (5a)

= 7a + 715

7a + 715 = 4250

7a = 4250-715

a = 3535 / 7

a = 505

c = 5a

= 5 (505)

= 2525

The factory make 2525 chocolate cookies.

5 0
2 years ago
The two-way table shows the number of people whose hobbies are reading or solving puzzles and who either ride a motorcycle or do
enot [183]

The number of people whose hobby is reading but not riding a motorcycle is 5.

<h3>What is the relative frequency of not riding a motorcycle?</h3>

We want to calculate the number of people whose hobby is reading but they don't like riding the motorcycle,

therefore, when we look into the table we will find out that block A2 is the block that represents the number of people whose hobby is reading but not riding a motorcycle.

Hence, the number of people whose hobby is reading but not riding a motorcycle is 5.

Learn more about Relative frequency:

brainly.com/question/14610326

7 0
2 years ago
Evaluate 0! + 1!. 0 1 2
wel

Answer:

2

Step-by-step explanation:

0! + 1!

= !1 / 1 + 1!

= 1 + 1

= 2

8 0
3 years ago
Read 2 more answers
Other questions:
  • vbnthe length of a rectangle is 4 1/2 centimeters the width of the rectangle is 2 2/5 centimeters what is the area of the rectan
    11·1 answer
  • The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy. Please help
    10·1 answer
  • Under typical conditions, 0.5 feet of snow will melt 2 inches of water. to how many inches of water will 6.5 of snow melt
    9·1 answer
  • The school had 366 chairs and 12 classrooms. How many chairs could they put in each classroom?
    5·1 answer
  • Enter the mixed number as an improper fraction. 2 3/8 =
    10·1 answer
  • Find the sum of the geometric sequence. 1, one divided by two, one divided by four, one divided by eight, one divided by sixteen
    12·2 answers
  • Can someone help me with algebra 2 with an explanation?
    12·1 answer
  • Find the sum or difference of the polynomials. Write your answer in descending
    6·2 answers
  • When simplified, which of the following expressions has a coefficient of 5?
    7·1 answer
  • Plzzzzz helppppp this is due tonight
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!