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2 years ago

So when you add 3+4 you get 7, but what if you divide 7 by 4? Do you still get 3?

Mathematics

2 answers:

krek1111 [17]2 years ago

7 0

No you wouldn’t it would be a different answer

scoray [572]2 years ago

3 0

Answer:

True. 3 + 4 is 7.

However if you divide 7 by 4, it is not 3.

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A spherical balloon is inflated with gas at the rate of 500 cubic centimeters per minute. How fast is the radius of the balloon

zmey [24]

Using implicit differentiation, it is found that the radius is increasing at a rate of 0.0081 cm per minute.

<h3>What is the volume of a sphere?</h3>

The volume of a sphere of radius r is given by:

$V = \frac{4\pi r^3}{3}$

Applying implicit differentiation, the rate of change is given by:

$\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}$

In this problem, we have that:

$\frac{dV}{dt} = 500, r = 70$

Hence the rate of change of the radius is given as follows:

$\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}$

$19600\pi\frac{dr}{dt} = 500$

$\frac{dr}{dt} = \frac{500}{19600\pi}$

$\frac{dr}{dt} = 0.0081$

The radius is increasing at a rate of 0.0081 cm per minute.

More can be learned about implicit differentiation at brainly.com/question/25608353

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4 0

1 year ago

If a ∝ b and a = 18 when b = 3, then find a when b = 5.

Elden [556K]

"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that

a = kb

We're given that a = 18 and b = 3, so that

18 = 3k ⇒ k = 6

Then when b = 5, we would have

a = 6 × 5 = 30

4 0

1 year ago

37% of what number is 72?

tatiyna

The answer is 194.59

(72 x 100) / 37 = 194.59

4 0

2 years ago

Read 2 more answers

A + 2 ÷ -24 = -4 what does A equal

sergeinik [125]

Step-by-step explanation:

A + 2 ÷ (-24) = -4

A - 1/12 = -4

A = -4 + 1/12

A = -48/12 + 1/12

A = -47/12

A ≈ -3,91

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2 years ago

Help! Quick please!

Vesnalui [34]

B..............
c>=3 and n<0 and p<=(9-3 c)/n

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3 years ago

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