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
andrey2020 [161]
3 years ago
6

The radius of a right circular cylinder is increasing at the rate of 3 ft/sec, while the height is decreasing at the rate of 6 f

t/sec. At what rate is the volume of the cylinder changing when the radius is 15 ft and the height is 10 ft? Remember to use the product rule when you find the expression for dV/dt.
30 ft3/sec
−900 ft3/sec
−450π ft3/sec
−900π ft3/sec
Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

\frac{dV}{dt}=-450\pi ft^3/sec

Step-by-step explanation:

Let's assume

radius of cylinder as 'r'

height of cylinder as 'h'

so, we have

\frac{dr}{dt} =3ft/sec

\frac{dh}{dt} =-6ft/sec

r=15ft

h=10ft

now, we can use volume of cylinder formula

V=\pi r^2h

we can find derivative with respect to t

\frac{dV}{dt}=2\pi r h\times\frac{dr}{dt} +\pi r^2\times \frac{dh}{dt}

now, we can plug values

\frac{dV}{dt}=2\pi (15)(10)\times3 +\pi (15)^2\times -6

now, we can simplify it

\frac{dV}{dt}=-450\pi ft^3/sec

You might be interested in
Lf g(x) = x3 - 5 and h(x) = 2x - 2, find g(h(3)).
White raven [17]

Answer: g(h(3)) = 59

Step-by-step explanation:

Well if its x^3 I assume it is because you wrote other coefficients before the variable.

2(3) - 2 = 6-2 = 4

So 4 is the x input for h(x)

4^3 -5 = 64-5 = 59

7 0
3 years ago
This is a picture of a cube and the net for the cube.
Nataliya [291]

Answer:

1196 mm^2

Step-by-step explanation:

That's really well described. All in all you have 6 squares all laid out flat. Each square has a side of 14 mm.

The area of 1 square = 14mm * 14mm = 196 mm^2

The area of 6 squares = 6 * 196 mm^2 = 1176 mm^2

3 0
3 years ago
Write the following sets in set-builder notation: (a) The set of all humans whose first name is Tanya or Nelson.
Ulleksa [173]

Answer:

Step-by-step explanation:

Set is a well defined collection of objects .

We can express set in roaster form or set - builder form

<u>Roaster Form</u>

We express elements within curly brackets using commas between the elements .

<u>Set Builder Form</u>

In set builder form , all the elements of the set possess a common property which is not possess by elements outside the set .

We describe the elements of set using a symbol x which is followed by a colon . After colon , we write property possessed by the element and then enclosed the description within curly brackets .

(a)The set of all humans whose first name is Tanya or Nelson

We need to write this one in set builder form .

Define set as follows : { x ∈ H : H is set of all the humans and x is either Tanya or Nelson }

5 0
3 years ago
Solve for p.<br> -p - 1 = 5 - 9p + 10p
Darina [25.2K]

Answer:

p= 1/3 or 0.33 repeating

Step-by-step explanation:

5-19p=-p-1

5=18p-1

6=18p

divide by 18

6/18 = 1/3 or 0.33 repeating

5 0
3 years ago
Read 2 more answers
The midpoint between (-4, 4) and (-2, 2)
Sav [38]
The midpoint is (-3,3)
5 0
3 years ago
Read 2 more answers
Other questions:
  • If m∠2=39 and m∠3=30, what is m∠1?
    13·1 answer
  • Carlita has 2 1/2 pounds of turkey, the cherries are 1/4 equal to the turkey, and the chocolate drips are .35 equal to the cherr
    14·1 answer
  • What is the absolute value for: <br> |40|
    15·2 answers
  • Bob and Mark talk about their families. Bob says he has 3 kids, the product of their ages is 72. He gives another clue: the sum
    15·2 answers
  • The graph of y=|x| is shifted down by 6 units and to the left by 9 units.
    9·1 answer
  • A population of largemouth bass is 950 this year and the rate of decrease is 35% per year. How many bass will remain after 15 ye
    14·1 answer
  • Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 26 coins with a total face value of $5.10, how many of
    6·2 answers
  • I really need your help please ​
    6·1 answer
  • Write the equation y= 5x-11 in standard form
    15·1 answer
  • A certain town never has two sunny days in a row. Each day is classified as being either sunny, cloudy (but dry), or rainy. If i
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!