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3 years ago

8

236x10 to the 5 power Please help

2 answers:

Delicious77 [7]3 years ago

8 0

Answer: 23600000

Step-by-step explanation:

Gnesinka [82]3 years ago

6 0

Answer:

7.3208248e+16

Step-by-step explanation:

236x10=

2,360

2,360x...

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The time for a professor to grade a student's homework in statistics is normally distributed with a mean of 12.6 minutes and a s

Rus_ich [418]

Answer:

37.23% probability that randomly selected homework will require between 8 and 12 minutes to grade

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 12.6, \sigma = 2.5$

What is the probability that randomly selected homework will require between 8 and 12 minutes to grade?

This is the pvalue of Z when X = 12 subtracted by the pvalue of Z when X = 8. So

X = 12

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{12 - 12.6}{2.5}$

$Z = -0.24$

$Z = -0.24$ has a pvalue of 0.4052

X = 8

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{8 - 12.6}{2.5}$

$Z = -1.84$

$Z = -1.84$ has a pvalue of 0.0329

0.4052 - 0.0329 = 0.3723

37.23% probability that randomly selected homework will require between 8 and 12 minutes to grade

7 0

3 years ago

Since beth was born, the population of her town has increased at a rate of 850 people per year. On beth 9ths birthday, the total

faltersainse [42]

Answer: There will be 313600 population on beth's 16 birthday.

Step-by-step explanation:

Since we have given that

When Beth was born , the population of her has increased = 850 per year

Let the initial population be x

and let the number of year be n

So, our linear equation becomes,

$x+850n$

On her 9th birthday,

The population becomes 307,650.

So, it becomes,

$x+850\times 9=307650\\\\x+7650=307650\\\\x=307650-7650\\\\x=300000$

So, initial population becomes 300000.

Now, on 16th birthday,

$x+850n\\\\300000+850\times 16=313600$

So, there will be 313600 population on beth's 16 birthday.

6 0

3 years ago

Read 2 more answers

Which digits can replace the blank to make a true statement?

steposvetlana [31]

It had to be 56 it can go aby higher than that

7 0

3 years ago

The value of the expression 16-^3/4 is___<br> 8<br> 1/8<br> -6<br> 6<br> 1/40<br> 1/64

lorasvet [3.4K]

Answer:

$\frac{1}{8}$

Step-by-step explanation:

Using the rules of exponents

• $a^{-m}$ ⇔ $\frac{1}{a^{m} }$

• $a^{\frac{m}{n} }$ ⇔ $\sqrt[n]{a^{m} }$

Hence

$16^{-\frac{3}{4} }$ = $\frac{1}{16^{\frac{3}{4} } }$

= $\frac{1}{\sqrt[4]{16^{3} } }$ = $\frac{1}{2^{3} }$ = $\frac{1}{8}$

5 0

3 years ago

-8+ 8b = 16 8b+8=16 -8=-8 8b=8

e-lub [12.9K]

$b = 3 \\ b = 1 \\ 0 \\ b = 1$

7 0

3 years ago