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Marta_Voda [28]
3 years ago
13

PLEASE HELP ME, IM GONNA CRY

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0

Answer:

CD is equal to 7.2 units

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a conical tank with vertex down is 10 feet across the top and 12 feet deep. If water is flowing out of the tank at a rate of 12
TiliK225 [7]

Answer:

The water level is dropping at a rate of 0.24 ft/s

Step-by-step explanation:

Here, we simply want to calculate the change in depth (height of the cone) , given the volume change

Mathematically, we have the volume of a cone as;

V = 1/3 * π * r^2 * h

we are given dv/dt as 12 ft^3/m

dv/dh = 1/3 * π * r^2

Substituting the value for the radius, we have

dv/dh = 1/3 * 22/7 * 4^2 = 50.29

dh/dt = dh/dv * dv/dt

dh/dv = 1/(dv/dh) = 1/50.29

Thus,

dh/dt = 1/50.29 * 12

dh/dt = 0.24 ft/s

3 0
2 years ago
Variations problem Help please
Zolol [24]

Answer:

9

Step-by-step explanation:

12-5=7 so...

2+7 = 9

y = 9

6 0
3 years ago
Y= 175÷x+z when x=17 and z=8
denpristay [2]
18.29
175 divided by 17 plus 8, use PEMDAS
3 0
2 years ago
Joy is reading a 352 page novel for her summer reading project on Monday she reads 3/8 of the novel on Tuesday she reads 28 page
MAXImum [283]

Answer:

104 Pages

Step-by-step explanation:

on Monday she reads 3/8 of the novel which means

\frac{3}{8} x 352 = 132 pages

on Tuesday she reads 28 pages, doesn't require any calculations.

on Wednesday she reads 1/4 of the novel,

\frac{1}{4} x 352 = 88

Just add all of that,

132+28+88=248 Pages

Subtract the novel pages by the read pages value

352-248=104pages.

8 0
3 years ago
A map shows that the vertices of a backyard are $W\left(-100,-70\right),\ X\left(-100,0\right),\ Y\left(0,0\right),$ and $Z\left
vichka [17]

i need a picture to answer this

Step-by-step explanation:

bc i said so

4 0
2 years ago
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