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son4ous [18]
3 years ago
5

What is the total surface area of a cylinder whose length is twice the radius

Mathematics
1 answer:
lianna [129]3 years ago
7 0
Lateral surface area of a cylinder: 2πrh, r is the radius, h is the height.
area of the top and bottom circle: πr²
when h=2r, the total surface area is:
2πr(2r)+πr²+πr²=6πr²
the answer is 6πr²
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Which of the following is a possible unit for the volume of a cone?
mash [69]

Possible unit is m³

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

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Three less than the product of 6 and a number is 45. What is the number?
strojnjashka [21]

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5 0
2 years ago
Which graph represents an exponential function?
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3 0
3 years ago
Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total
dimulka [17.4K]
You can set up a system of equations for this problem. x= number of coach tickets and y = number of first class tickets.

$210x + $1200y = $10,230 (cost of coach ticket plus cost of first class tickets is total budget)

x + y = 11 (number of coach tickets plus number of first class tickets is total number of people)

Solve the second equation for y to get y = 11 - x, then plug that into the first equation and solve for x:

$210x + $1200(11 - x) = $10,230

$210x + $13,200 - $1200x = $10,230

-$990x + $13,200 = $10,230

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x = 3


Sarah bought x = 3 coach tickets. Plug that into the second equation and solve for y:

3 + y = 11

y = 8


Sarah bought y = 8 first class tickets.
6 0
3 years ago
you invest $2800 in an account that pays an interest of 5.5%, compounded continuously. calculate the balance of your account aft
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Hi, hope this helps you. Have a good day. :)

Answer:

A = $5,417.42 (balance of the account)

I = $2,617.42

5 0
3 years ago
Read 2 more answers
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