What is -0.009 to the second power

What do race car drivers like to do?: 3y-6+7y-4y

stich3 [128]

3y + 7y = 11y - 4y = 7y -6

Answer: 7y - 6

:) I think this may be correct

4 0

3 years ago

a theme park in florida wants to attract more viewers. they post a survey on a travel website which attractions they would like

ioda

Answer:

The target population of the survey are travelers vacationing.

8 0

3 years ago

In response to the increasing weight of airline passengers, the Federal Aviation Administration (FAA) in 2003 told airlines to a

aleksandr82 [10.1K]

Answer:

There is a 33.72% probability that the total weight of the passengers exceeds 4500 pounds.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

There are 22 passengers. Passengers average 190 pounds in the summer, including clothing and carry-on baggage. But passengers vary, and the FAA did not specify a standard deviation. A reasonable standard deviation is 35 pounds. This means that $\mu = 22*190 = 4180, \sigma = 22*35 = 770$ .

What is the approximate probability that the total weight of the passengers exceeds 4500 pounds?

This probability is 1 subtracted by the pvalue of Z when $X = 4500$ . So

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

$Z = \frac{4500 - 4180}{770}$

$Z = 0.42$

$Z = 0.42$ has a pvalue of 0.6628.

This means that there is a 1-0.6628 = 0.3372 = 33.72% probability that the total weight of the passengers exceeds 4500 pounds.

7 0

3 years ago

What is the Distance between (-3,-11) and (8,-42)

OlgaM077 [116]

Answer:

d = 32.893

Step-by-step explanation:

The distance formula is

d = $\sqrt{(x2-x1)^{2} + (y2-y1)^{2}$

now we plug in the x and y

d = $\sqrt{(8-(-3))^2 + ((-42) - (-11))^2}$

d = 32.893

4 0

4 years ago

What is a counterexample for the conjecture? Any number that is divisible by four is also divisible by eight

Cloud [144]

The value 12 is a good counterexample. It is divisible by 4 (since 12/4 = 3 is a whole number with no remainders or decimal portions) but 12 is not divisible by 8 (note how 12/8 = 1 remainder 4 = 1.5)

To find other examples, add 8 to 12 to get 20. Then add on 8 more to get 28. This pattern continues on forever.

3 0

3 years ago