3 years ago

I need help: what is this?

Mathematics

1 answer:

givi [52]3 years ago

3 0

Answer:

Step-by-step explanation:

first you have to do the 1+2 to get 3 then you divide 6 by 2 and get 3 then you multiply 3x3 to get 9!

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Match the expressions given in words with their values when m=6

Assoli18 [71]

Yes i am omg wow hey

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3 years ago

Which of the triangles shown are scalene triangles? (2 points)

kenny6666 [7]

Answer:

Triangle D.

Step-by-step explanation:

A scalene triangle has different sides.

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2 years ago

The radius r(t)r(t)r, (, t, )of the base of a cylinder is increasing at a rate of 111 meter per hour and the height h(t)h(t)h, (

sp2606 [1]

Answer:

The volume is decreasing at a rate 20π cubic meter per hour.

Step-by-step explanation:

We are given the following in the question:

The radius is increasing at a rate 1 meter per hour.

$\dfrac{dr}{dt} = 1\text{ meter per hour}$

The height is decreasing at a rate 4 meter per hour

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At an instant time t,

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h = 8 meters

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$\pi r^2 h$

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Rate of change of volume is given by:

$\dfrac{dV}{dt} = \dfrac{d(\pi r^2 h)}{dt}\\\\\dfrac{dV}{dt} = 2\pi rh\dfrac{dr}{dt} + \pi r^2\dfrac{dh}{dt}$

Putting all the values we get,

$\dfrac{dV}{dt} = 2\pi (5)(8)(1) + \pi (5)^2(-4)\\\\\dfrac{dV}{dt} = 80\pi - 100\pi = -20\pi \approx -62.8$

Thus, the volume is decreasing at a rate 20π cubic meter per hour or 62.8 cubic meter per hour.

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3 years ago

Ari exercises 1 5/8 hours per day. If he exercises five days a week, how many total hours does he exercise in a week?

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Answer:

8.125

Step-by-step explanation:

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3 years ago

Read 2 more answers

Helearning.com/lesson_player/?#lessons/595/activities/3033/items/551

Lady_Fox [76]

5,7

it aint even that hard bro

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2 years ago