3 years ago

El cuadrado de la suma (x + 4)2 es

Mathematics

1 answer:

rewona [7]3 years ago

6 0

Answer:

Step-by-step explanation:

sana makatulong sayo

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Assume that females have pulse rates that are normally distributed with a mean of mu equals 73.0 beats per minute and a standard

slava [35]

Answer: 0.2510

Step-by-step explanation:

Given : Mean = $\mu=\text{73.0 beats per minute}$

Standard deviation : $\sigma=\text{12.5 beats per minute}$

Sample size : n=1

We assume that females have pulse rates that are normally distributed.

Then , the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x =69

$z=\dfrac{69-73}{\dfrac{12.5}{\sqrt{1}}}=-0.32$

For x= 77

$z=\dfrac{77-73}{\dfrac{12.5}{\sqrt{1}}}=0.32$

The p-value = $P(-0.32$

$=P(z$

Hence, the probability that her pulse rate is between 69 beats per minute and 77 beats per minute =0.2510

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3 years ago

Write an algebraic equation twice a number increased by 10 is 50

salantis [7]

You need to represent it as 2x + 10 = 50

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4 years ago

What method can researchers employ in order to counter bias in their sampling?

navik [9.2K]

Random sampling is the method that researchers can employ in order to counter bias in their sampling. None of the provided choices are correct.

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4 years ago

4) -8 – 3a = 46 whoever has best answer gets brainliest

Gelneren [198K]

Answer:

A= -18

Step-by-step explanation:

-8-3(-18)= 46= -18

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3 years ago

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The quotient below is shown without the decimal point. Use number sense to place the decimal point correctly. 370 ÷ 2.5 ÷ 1.6 =

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Answer:

92.5

Step-by-step explanation:

When you would look at this you would just see that there are if you divide 370 by 2 and 2 again you will not get a small number so the only logical answer is 92.5

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