3 years ago

Prior is releasing a pendulum ball the ball has

Mathematics

1 answer:

sertanlavr [38]3 years ago

7 0

The ball has Kinetic energy because it's in motion.

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kirill115 [55]

Answer:

The number of ways is $\left 9}\atop } \right. P _5 = 15120$

Step-by-step explanation:

From the question we are told that

The number of factories visited is $n = 9$

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$\left 9}\atop } \right. P _5 = \frac{9!}{(9-5)!}$

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=> $\left 9}\atop } \right. P _5 = \frac{9 \ !}{4\ !}$

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3 years ago

In the following exercises, identify whether each number is rational or irrational.

klasskru [66]

Answer:

(a) √25 rational

(b) √30 irrational

Step-by-step explanation:

Note : only perfect squares have rational roots

25 = 5² then 25 is a perfect square

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30 cannot be written in the form a² where ‘a’ I start a natural number then 30 is not a perfect square

Therefore √30 is irrational.

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