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2 years ago

WILL MARK BRAINLIEST IF GOTTEN RIGHT!!!!!!

Mathematics

2 answers:

lisov135 [29]2 years ago

8 0

Answer:

B wpuld be your answer

Step-by-step explanation:

Its the nearest ft from 70.

siniylev [52]2 years ago

5 0

Yes B is the correct answer :) have a good day

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Complete the description of the translation

Anit [1.1K]

The triangle translated 3 units right and 4 units down. Hope this helps!

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3 years ago

I need help I’m helping my son with a project he has to choose 2 ingredients out of his Mac and cheese recipe and tell their rat

AnnyKZ [126]

Answer:

2/3:1

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2 years ago

Gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. It forms a pile in the shape of a right circu

Sunny_sXe [5.5K]

Answer:

0.0221 feet per minute.

Step-by-step explanation:

$\text{Volume of a cone}=\dfrac{1}{3}\pi r^2 h$

If the Base Diameter = Height of the Cone

The radius of the Cone = h/2

Therefore,

$\text{Volume of the cone}=\dfrac{\pi h}{3} (\dfrac{h}{2}) ^2 \\V=\dfrac{\pi h^3}{12}$

Rate of Change of the Volume, $\dfrac{dV}{dt}=\dfrac{3\pi h^2}{12}\dfrac{dh}{dt}$

Since gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. Therefore, the Volume of the cone is increasing at a rate of 10 cubic feet per minute.

$\dfrac{dV}{dt}=10$ ft^3/min$

We want to determine how fast is the height of the pile is increasing when the pile is 24 feet high.

We have:

$\dfrac{3\pi h^2}{12}\dfrac{dh}{dt}=10\\\\$When h=24$ feet$\\\dfrac{3\pi *24^2}{12}\dfrac{dh}{dt}=10\\144\pi \dfrac{dh}{dt}=10\\ \dfrac{dh}{dt}= \dfrac{10}{144\pi}\\ \dfrac{dh}{dt}=0.0221$ feet per minute$

When the pile is 24 feet high, the height of the pile is increasing at a rate of 0.0221 feet per minute.

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2 years ago

How do i factor -7x^2+5x+12

yKpoI14uk [10]

Answer:

-(x + 1)(7x - 12)

Step-by-step explanation:

Step 1: Factor out a -1

-1(7x² - 5x - 12)

Step 2:

Think. Answer this question: "What 2 numbers multiply up to -12 and adds up to -5 while 7 is an x coefficient?". You answer should be -12 and 1.

So, <em>factor</em>.

-1(x + 1)(7x - 12)

To double check, just expand/FOIL everything and see if it is the same as the original expression.

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3 years ago

Simplify. Remove all perfect squares from inside the square root. \sqrt{30b^5}= 30b 5

vichka [17]

Answer:

The answer is b=0 or b=9.085603

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3 years ago