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Readme [11.4K]
3 years ago
10

What is the vertex form of the function y = x2 + 8x – 3

Mathematics
1 answer:
Scrat [10]3 years ago
8 0

Answer:

y=(x+4)²-19

Step-by-step explanation:

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According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of
worty [1.4K]

Answer:

The answer is below

Step-by-step explanation:

Given that mean (μ) = 23 hours, standard deviation (σ) = 10 hours

a) The population is a group of self employed home based workers while the variable is the number of hours worked per week.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

\mu_x=\mu=23\ hours

The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{100} }=1

c) \mu_x=\mu=23\ hours

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{1000} }=0.32

d) The sample size has no effect on the mean, hence increasing the sample size does not change the mean.

The square root of sample size is inversely proportional to the standard deviation therefore increasing the sample size reduces the standard deviation.

5 0
3 years ago
The figure to the right has its congruent segments marked. Find the measure of AB.
Vaselesa [24]

Answer:

the measure of AB =29 meters

5 0
3 years ago
Increase 4 litres by 5%
Klio2033 [76]
Increase=5%of 4
=5÷100×4=0.2
So 4+0.2=4.2litres
6 0
3 years ago
It takes 113 pounds of seed to completely plant a 12 -acre field. how many acres can be planted per pound of seed?
svp [43]
The answer is <span>0.10619469026. 

It takes about 9lbs of seed to plant 1-acre, so to find the answer divide 12/113 and you get how many acres 1lb of seed could cover.

Hope this helps :-)

</span>
3 0
3 years ago
Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating c
Digiron [165]

Answer: 2.

Step-by-step explanation: Don't reject H0, we can't conclude cause of the sales and the aftermath.

4 0
3 years ago
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