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3 years ago

14 - 2 ( 1+2) answer

Mathematics

2 answers:

Alla [95]3 years ago

6 0

8

hope this helps!!!!!!

riadik2000 [5.3K]3 years ago

4 0

That would be 8. first parenthesis, then multiply, then subtract.

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nataly862011 [7]

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La respuesta es 7+6 ó 6+7 que es 13

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3 years ago

If the point (35,45) corresponds to an angle θ in the unit circle, what is tan θ ?

nadya68 [22]

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3 years ago

Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a. If one wom

Zarrin [17]

Answer: a) 0.5636 b) 0.7881

Step-by-step explanation:

We assume that women’s heights are normally distributed .

Let x be the random variable that represents the shoe sizes.

Also, The population mean = $\mu=\text{63.6 inches}$ ; Standard deviation: $\sigma=\text{2.5 inches}$

a) Formula for z:-

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

Put x= 64, we get

$z=\dfrac{64-63.6}{2.5}=0.16$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(z$

Hence, the probability that her height is less than 64 inches = 0.5636

b. Sample size : n= 25

Then , the formula for z :-

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

Put x= 64, we get

$z=\dfrac{64-63.6}{\dfrac{2.5}{\sqrt{25}}}=0.8$

Then, the probability that they have a mean height less than 64 inches.:_

$P(z$

Hence, the probability that they have a mean height less than 64 inches. =0.7881

7 0

3 years ago

Read 2 more answers

Y\7+6= what does y =

choli [55]

Simple, y can be anything. Because you have no other variable on the other side to use; y can be whatever you want to plug-in to the equation.

5 0

3 years ago