3 years ago

A pizza with a 30cm diameter is cut up into slices.

Mathematics

1 answer:

Alina [70]3 years ago

3 0

Answer:

28.274333882308138

Step-by-step explanation:

I think it's correct..

I divided 30cm by 50% and then put 6 into a pizza area calculator and came up with this answer.e

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Answer this question Angie and her friends are 3/4 of a pizza.Her brother joe ate 2/3 of what was left.How much did joe eat?

Alja [10]

If Angie and her friends ate 3/4 of a pizza, that means that 1/4 is left.
Joe ate 2/3 of 1/4 of a pizza. To find out how much he ate, multiply 1/4 by 2/3.

$\frac{1}{4}* \frac{2}{3}= \frac{2}{12}$ because you multiply fractions straight across.

Your answer is 2/12 or <em>1/6 of the pizza</em>

4 0

3 years ago

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A pizza chef begins to spin a constant volume of dough to make a pie by spinning and tossing the dough into the air, such that t

Alexxandr [17]

Answer:

a ) dAt/dt = 50,24 in/min

dh/dt = - 0,125 in/min

Step-by-step explanation:

The area of the top is At :

At = π*r²

a) Tacking derivatives with respect to time:

dAt/dt = 2* π*r * dr/dt

At t = t₁ r = 16 in and dr/dt = 0,5

Then

dAt/dt = 2*3,14*16*0,5 in/min

a ) dAt/dt = 50,24 in/min

b) The volume of the cylinder is:

Vc = π*r²*h ( where h is the heigh of the cylinder )

Tacking derivatives with respect to time

dVc/dt = 2* π*r*h*dr/dt + π*r²*dh/dt

But dVc/dt = 0 since the volume remains constant, then:

π*r²*dh/dt = - 2* π*r*h*dr/dt

r*dh/dt = - 2*h*dr/dt

dh/dt = - 2*0,5*2/16 in/min

dh/dt = - 0,125 in/min

4 0

3 years ago

Solve using quadratic formula.<br><img src="https://tex.z-dn.net/?f=4%20%7Bs%7D%5E%7B2%7D%20%2B%208s%20%2B%204%20%3D%200" id="Te

lianna [129]

S = - 1
Hope this help!

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3 years ago

What is b + 1.1 = - 11

gladu [14]

B + 1.1 = -11

Subtract 1.1 from both sides to get b.

So, b = -12.1

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3 years ago

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Zack and tia played chess for 50 minutes they put the chess board away at 11:20 when did they start

svetlana [45]

10:30 because an hour before 11:20 is 10:20, but it was only 50 minutes, so add 10 minutes to 10:20 , and there you have it, 10:30.

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3 years ago