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3 years ago

HELP I WILL GIVE BRAINIEST

Mathematics

1 answer:

lilavasa [31]3 years ago

5 0

Answer:

Step-by-step explanation:

common sense.

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Someone help me pls, for real

Naily [24]

Answer:

whats the question

Step-by-step explanation:

3 0

2 years ago

A right circular cone is undergoing a transformation in such a way that the radius of the cone is increasing at a rate of 1/2 in

Ivenika [448]

Answer:

The volume is decreasing at the rate of 1.396 cubic inches per minute

Step-by-step explanation:

Given

Shape: Cone

$\frac{dr}{dt} =\frac{1}{2}$ --- rate of the radius

$\frac{dh}{dt} =-\frac{1}{3}$ --- rate of the height

$r = 2$

$h = \frac{1}{3}$

Required

Determine the rate of change of the cone volume

The volume of a cone is:

$V = \frac{\pi}{3}r^2h$

Differentiate with respect to time (t)

$\frac{dV}{dt} = \frac{\pi}{3}(2rh \frac{dr}{dt} + r^2 \frac{dh}{dt})$

Substitute values for the known variables

$\frac{dV}{dt} = \frac{\pi}{3}(2*2*\frac{1}{3}* \frac{1}{2} - 2^2 *\frac{1}{3})$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}* \frac{1}{2} - \frac{4}{3})$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}(\frac{1}{2} - 1))$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}*- 1)$

$\frac{dV}{dt} = -\frac{\pi}{3}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{22}{7*3}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{22}{21}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{88}{63}$

$\frac{dV}{dt} =-1.396in^3/min$

The volume is decreasing at the rate of 1.396 cubic inches per minute

3 0

3 years ago

PLEASE HELP! I need someone to help me with my home work is anyone able to help?

Monica [59]

Answer:

Katie

Step-by-step explanation:

Use seconds as the standard unit to compare the speeds of the 4 runners

Tony is already in standard form and runs 12 ft/s

Katie:

450/30

15 ft/s

Frank:

1 mile = 5280 feet

5280/577

9.15 ft/s

Adam:

I minute = 60 seconds

880/60

14.67 ft/s

8 0

3 years ago

Joel sells ice cream cones at the country fair. he has to rent the equipment for $36 and spend $0.52 on ingredients for each con

svlad2 [7]

$1.4-0.52=$0.88

So, Joel makes $0.88 profits for every sales.

To overcome rent fee, We need $36.

36/0.88= 40.90909....

So, Joel needs to sell at least 41 iceCream on country fair to make profits.

4 0

3 years ago

F(x) = -22<br> - 4x – 19<br> Find f(-9)

Alexxx [7]

Answer:the answer is -5

Step-by-step explanation:

4 0

3 years ago

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