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2 years ago

Need help with this.

Mathematics

1 answer:

Yanka [14]2 years ago

5 0

Answer:

try restart it and charge it to the max and then try change the internet source likeopen hotspot and see

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Gravel is being dumped from a conveyor belt at a rate of 30 ft3/min, and its coarseness is such that it forms a pile in the shap

pogonyaev

Answer:

Rate of increase in height = $\frac{dh}{dt}=0.3156ft/min$

Step-by-step explanation:

we know that volume of a cone is given by

$V=\frac{1}{12}\pi d^{2}h$

It is Given that diameter equals height thus we have

$V=\frac{1}{12}\pi h^{2}h\\\\V=\frac{1}{12}\pi h^{3}$

Differentiating both sides with respect to time we get

$\frac{dV}{dt}=\frac{1}{12}\pi \frac{dh^{3}}{dt}\\\\\frac{dV}{dt}=\frac{1}{12}\pi(3h^{2}\frac{dh}{dt})$

Applying values and solving for $\frac{dh}{dt}$ we get

$\frac{dh}{dt}=\frac{12\frac{dV}{dt}}{3\pi h^{2}}\\\\\frac{dh}{dt}=0.3156ft/min$

8 0

2 years ago

Dave rented a limousine for his wife's birthday. The hourly rate is $80. They used the limousine for 4 hours, plus Dave gave the

Pavel [41]

$80 hourly used limousine
80 * .20 = $16 tip

$80 + $16 = $96 <span>he spent hourly charges plus tip

$96 * 4 = $384 total for 4 hours plus tip</span>

7 0

2 years ago

A banner is in the shape of a rectangle. It is 15 feet long and 12 feet wide. What is the perimeter?

Effectus [21]

Here....

The length is given 15 feet and the width is 12 feet...Now let's find the Perimeter..

The formula to calculate Perimeter of rectangle is 2 ( l + b )

Perimeter = 2 ( l + b )

= 2 ( 15 + 12 )

= 2 × 27

= 54 feet

$...$

:)...

3 0

2 years ago

A Board Is 3 yards and 1 foot long. How long will the board be if 56 inches are cut from one end?

TiliK225 [7]

The answer would be 64 inches or 5 feet 4 inches.
3 yards is equal to 108 inches and 1 foot is equal to 12 inches which equals 120 inches
120-56=64

5 0

2 years ago

Read 2 more answers

If 8 girls brought a lunch box and 6 boys didnt what is the probability of a student bringing one.

Tatiana [17]

Answer:

43 percent

Step-by-step explanation:

6/14 ×100%

=0.248

=43%

first add up the total people, then substract the total of people to the people that didn't bring them, divide them then multiply it by 100%

3 0

3 years ago

Need help with this.​

Need help with this.