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cricket20 [7]
3 years ago
13

A teacher wants to award prizes for 1st, 2nd, 3rd, 4th and 5th in the class of

Mathematics
1 answer:
antoniya [11.8K]3 years ago
5 0

Answer:

2,052,086,400.

Step-by-step explanation:

Permutation

Pr = n! / (n-r)!

30P5 = 30! / (30-5)

30P5 = 30x29x28x27x26x25! / 25!

(Just cancel the 25! on the numerator and denominator for easier solving.)

30P5 = 30x29x28x27x26

30P5 = 17,100,720.It is not the final answer because we can still arrange the 5 winners.

5! = 5×4×3×2×1 = 12017,100,720 × 120 = 2,052,086,400

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One scientific team determened that the avrage thickness of a chickens egg shell is 0.311 millimeters
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Answer:

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Step-by-step explanation:

We use the following info in order to complete the qeustion:

Round the thickness of the shell to the nearest tenth.

0.3

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9

As we can see the average for the thickness of a chickens egg shell is 0.311 mm and if we want to round this number to the nearest tenth we just need to see the second decimal place and round to one decimal place.

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This equation can be interpreted as follows:

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3 years ago
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