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11Alexandr11 [23.1K]
2 years ago
9

Gravel is being dumped from a conveyor belt at a rate of 40 ft3/min, and its coarseness is such that it forms a pile in the shap

e of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 15 ft high
Mathematics
1 answer:
ikadub [295]2 years ago
4 0

The height is increasing at the rate of (6/5π) ft/min.

It is given that Gravel is being dumped from a conveyor belt at a rate of 40 ft3/min. Also, its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal.

For this, we need to find the volume of a cone. Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface.

The volume of a cone is - V=1/3hπr²

Learn more about integers here: brainly.com/question/20521181

#SPJ4

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What is the y-intercept of the line perpendicular to the line y = 3/4x + 3 that includes the point (-3, -3)
kipiarov [429]
A perpendicular line has an opposite reciprocal slope. This means that the new line will have a slope of -4/3x. Plug in x and y into the equation y=Mx +b where m is the slope (-4/3):
-3=(-3/4)(-3) + b
and isolate b:
b-3=(-3/4)(-3)
b=(-3/4)(-3) +3
b=9/4+3
b=21/4

The final equation is y= -4/3x + 21/4
The y intercept is (21/4).
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3 years ago
a diagram shows one of the post at the end of Manuel driveway it length is 11.5 the breadth is 11.5 and the width is 7.4 what is
lisov135 [29]
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6 0
3 years ago
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Last one for real this time!<br> Find the perimeter and area the figure.
Natali5045456 [20]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Find the surface area of the composite figure
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
URGENT!!!!!<br> With workings
Aneli [31]
There’s probably an easier way to do it like with the equation to find the area of a trapezoid but i did it this way bc it’s easier for me

i split the trapezoid into a triangle and a square
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then found the area of the triangle (base X height divided by 2)

THE ANSWER IS 68.9 CM

6 0
3 years ago
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