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3 years ago

Which of the following is two-dimensional and infinitely large?

Mathematics

1 answer:

Makovka662 [10]3 years ago

4 0

Answer:

D. A solid

Step-by-step explanation:

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The number of students enrolled at a college is 12,000 and grows 3% each year.

RideAnS [48]

159 i don’t know for sure tho

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3 years ago

What does a radius of a sphere join?

Reika [66]

<span>The radius of a sphere join refers to the (D) the center and a point on the sphere. A radius is the distance of the center point to any sides of the circle or sphere. The point on the sphere can be anywhere. The center and a point on the sphere forms a sphere join.</span>

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3 years ago

A cone has a radius of 5 ft and a height of 15 ft. It is empty and is being filled with water at a constant rate of 15 15 ft 3 f

kvasek [131]

Answer:

$\frac{dr}{dt}=0.11062ft/sec$

Step-by-step explanation:

From the question we are told that:

Radius $r=5ft$

Height $H=15ft$

Rate $R=15ft/3sec =5ft/s$

Surface Radius $R_{surf}=2.2ft$

Generally the equation for Volume is mathematically given by

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

Since radius to height ratio gives

$\frac{r}{h}=\frac{5}{15}$

$\frac{r}{h}=\frac{1}{3}$

$h=3r$

Therefore

$V=\frac{1}{3}\pi*r^2(3r)$

$V=\pi r^3$

Generally the equation for Change of Volume is mathematically given by

$\frac{dv}{dt}=\pi \frac{d}{dt}(r^3)$

$\frac{dv}{dt}=\pi 3*r^2 \frac{dr}{dt}$

$\frac{dv}{dt}=\pi 3*(2.2)^2 \frac{dr}{dt}$

$\frac{dr}{dt}=\frac{5}{45.62}$

$\frac{dr}{dt}=0.11062ft/sec$

3 0

3 years ago

12. A photo album page can hold 6 photographs. You have 296 photographs. How many pages do you need?

enot [183]

You need about 50 pages. but to be exact it’s 49.3333333...going on forever

4 0

3 years ago

Two boys earn money mowing lawns. Jacob mowed 12 lawns this week. He mowed 3 times as many lawns as Kevin mowed. In which equati

olya-2409 [2.1K]

Answer:

Kevin mowed 4 lawns

Step-by-step explanation:

Let the number of lawns Kevin mowed be x.

12 = 3x

x = 4

Topic: Algebraic equations

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

3 0

3 years ago