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3 years ago

Am I correct? If not which of the answers is correct?

Mathematics

1 answer:

Ivahew [28]3 years ago

5 0

I believe you are correct

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Elenna [48]

There would be 24 fish left because 48/2 = 24

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3 years ago

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A vertical cylinder is leaking water at a rate of 4m3/sec. If the cylinder has a height of 10m and a radius of 2m, at what rate

Katyanochek1 [597]

Answer:

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

Step-by-step explanation:

Given that a vertical cylinder is leaking water at rate of 4 m³/s.

It means the rate change of volume is 4 m³/s.

$\frac{dV}{dt}=4 \ m^3/s$

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is $V=\pi r^2 h$

$=( \pi \times 2^2\times h)\ m^3$

$\therefore V= 4\pi h$

Differentiating with respect to t.

$\frac{dV}{dt}=4\pi \frac{dh}{dt}$

Putting the value $\frac{dV}{dt}$

$\Rightarrow 4\pi \frac{dh}{dt}=4$

$\Rightarrow \frac{dh}{dt}=\frac{4}{4\pi}$

$\Rightarrow \frac{dh}{dt}=\frac{1}{\pi}$

The rate change of height does not depend on the height.

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

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3 years ago

A 3-pound package of ground beef is $7.80. A 1/2-pound package is $1.28. What is the difference in the cost per pound between th

IRINA_888 [86]

Answer:

$0.04/lb

Step-by-step explanation:

Cost per lb for the 3 lb package is $7.80/(3 lb), or $2.60/lb)

Cost per lb for the 1/2-lb package is $1.28 / [(1/2) lb], or $2.56.

The difference in cost per pound is $2.60 - $2.56, or $0.04/lb

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3 years ago

Which of these equations has only one solution?

kolezko [41]

The correct answer to the question provided is a the only possible solution is a=3

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Read the following sentences:

telo118 [61]

Answer:

I think for example

Step-by-step explanation:

its definitely not tomorrow, nor afterward. It may be in addition but to me for example makes more sense.

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3 years ago