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andriy [413]
3 years ago
12

Someone help solve ill gift you nitro :)

Mathematics
1 answer:
Tems11 [23]3 years ago
7 0
1/3•3.14•. r^2 •h

1/3•3.14•20^2•25

10466.6667

that rounds up to 10,467.

I could be wrong though!

hope this helps! :)
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Peter's dog eats 0.3 kilograms of dog food each day. How much dog food will Peter's dog eat
11111nata11111 [884]

All you have to do is multiply 0.3 by 8.

8×0.3=2.4

The dog will eat 2.4 kilograms of food in 8 days. Hope that helps!

8 0
3 years ago
Read 2 more answers
Please help me, if you help then thanks!
lara31 [8.8K]

Answer:

x = 5

Step-by-step explanation:

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8 0
3 years ago
A cup of coffee at 85 degrees Celsius is placed in a room at 25 degrees Celsius. Suppose that the coffee cools at a rate of 5 de
bezimeni [28]

Answer: k = - 6.6667

Step-by-step explanation:

this is quite very simple to begin. I would encourage you take other practice questions similar to help with understanding it.

let us begin.

Given that ;

dT/dt = k ( Tm - T)       where Tm is the temp of the medium

dT/dt = 5 degrees Celsius per minute    when T = 70

so we have that, 5 = k ( 25 - 70)

remember to convert 5 degree celsius per minute to seconds

we have that;

5*60(sec) = k ( 25 - 70)  

k = 5*60 / ( 25 - 70)

k = - 6.6667

note K is negative because we consider it for cooling process  (temp decreasing).

cheers i hope this helps!!!

3 0
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An item was originally priced at $6, but you used a coupon and bought it for $4.80. What percent was the coupon you used?
Luden [163]

Answer:

You used 80% I think :)

Step-by-step explanation:

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This graph represents a quadratic function. Which expression is a factor of the function's equation?
erastova [34]
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