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2 years ago

Use the properties of exponents to simplify the expression: 212 × 232

Mathematics

1 answer:

Tanzania [10]2 years ago

8 0

Answer:

Man's in Ce

Step-by-step explanation:

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In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Furthermore, there

yan [13]

Answer:

Explained below.

Step-by-step explanation:

According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normally.

Then, the mean of the sample means is given by,

$\mu_{\bar x}=\mu$

And the standard deviation of the sample means is given by,

$\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}$

The expected value of the sample mean of their weights is same as the population mean, <em>μ</em> = 1515 lbs.

The standard deviation of the sampling distribution of the sample mean weight is:

$\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}=\frac{25}{\sqrt{16}}=6.25$

The average weights for a sample of 16 people will result in the total weight exceeding the weight limit of 2500 lbs. is:

$\text{Average Weight}=\frac{2500}{16}=156.25$

Compute the probability that a random sample of 16 persons on the elevator will exceed the weight limit as follows:

$P(\bar X > 156.25)=P(\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}>\frac{156.25-151}{6.25})\\\\=P(Z>0.84)\\\\=1-P(Z$

4 0

2 years ago

Answer this please will give brainliest

Pavlova-9 [17]

Answer:

answer is 4

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

5x-y=-5 and 3x-6y=24

creativ13 [48]

(x,y) = {-2,-5}. I’m pretty sure this is correct. Hope it help!! ❤️

5 0

2 years ago

One month, the price of gas was $1.44. The next month the price of gas was $2.40. What was the approximate percent of increase f

Lapatulllka [165]

Step 1:
Find the difference between the two numbers.
$2.40-$1.44= $0.96

Step 2:
Divide by the original number.
$0.96/1.44= 0.667

Step 3:
Multiply by 100 to find percent increase.
0.667 * 100= 66.7% rounded to one decimal place or 67% rounded

Hope this helped! :)

6 0

3 years ago

The point (0,10) is called a ____-intercepta?

RUDIKE [14]

Answer: y-intercept

Explanation: A point is classified as (x, y) and in order for this ordered pair to be a y-intercept, we need to have the x-coordinate be 0.

Since the x-coordinate is 0, this is a y-intercept.

3 0

2 years ago