3 years ago

F ( x) = -x^2 + 50x =

Mathematics

1 answer:

svlad2 [7]3 years ago

3 0

Are you finding the domain and range or the maximum or minimum values? what’s the question?

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Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

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4 years ago

Investors buy a studio apartment for $140,000. Of this amount, they have a down payment of

Soloha48 [4]

Answer:

Everyone Call this number *spam call like a prank call* 786 280 5450

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2 years ago

Two airliners are 1600 miles apart and heading toward each other at different altitudes. The first plane is traveling north at 6

viktelen [127]

In approximately around 2 hours and 10 mins

4 0

4 years ago

Segment AB has endpoints A(–4, 6) and B(1, 4). After a dilation, centered at the origin, the image of A is (–6, 9). Without meas

Ksivusya [100]

With A and its image one can get the dilation factor;
That is dilation scale factor = -6/-4 or 9/6 = 3/2
Therefore, to get the image of B we multiply the coordinates of B by the dilation factor;
(1,4) 3/2 = (1.5, 6)
Thus the image of B = (1.5,6)

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3 years ago

Read 2 more answers

1. The temperature was 80 ℉ in Arizona and then fell 20 ℉ during the night.

notsponge [240]

Answer:

1. 60 F 2. -6 F

Step-by-step explanation:

simple math

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3 years ago