3 years ago

The average human heart beats 72 beats per minute. How many times does it beat in 15 seconds?

Mathematics

1 answer:

Brut [27]3 years ago

4 0

It beats 27 times because the sum of 15 and 45 is 60 and

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A company believes that it controls more than 30% of the total market share for one of its products. To prove this belief, a ran

stiv31 [10]

Answer: 1.24

Step-by-step explanation:

Let p be the population proportion of the total market share for one of its products.

As per given , we have

p=0.30

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Formula for z-value :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

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4 years ago

Find the prime factorization of the number 12

Vsevolod [243]

First, you must use a factor tree to find the prime factors of the number.

/ \

6 (2)

/ \

(3) (2)

2 , 2 and 3 are the prime factors that make 12

2 x 2 x 3= 12

2^2 x 3= 12

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3 years ago