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Lubov Fominskaja [6]
3 years ago
7

What is 6X squared +17 X +13+4 over X -1 multiplied by X minus one

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer:

6x^{3} + 11^{2} - 4x -9

Step-by-step explanation:

i) (6x^{2} + 17x  + 13  + \frac{4}{x-1} ) \times (x - 1) = (6x^{2} + 17x  + 13)\times (x - 1) + 4 = 6x^{3} + 11^{2} - 4x -9

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4)In order to set rates, an insurance company is trying to estimate the number of sick daysthat full time workers at an auto rep
bagirrra123 [75]

Answer:

A sample of 18 is required.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.92}{2} = 0.04

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.04 = 0.96, so Z = 1.88.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

A previous study indicated that the standard deviation was 2.2 days.

This means that \sigma = 2.2

How large a sample must be selected if the company wants to be 92% confident that the true mean differs from the sample mean by no more than 1 day?

This is n for which M = 1. So

M = z\frac{\sigma}{\sqrt{n}}

1 = 1.88\frac{2.2}{\sqrt{n}}

\sqrt{n} = 1.88*2.2

(\sqrt{n})^2 = (1.88*2.2)^2

n = 17.1

Rounding up:

A sample of 18 is required.

3 0
3 years ago
Kayla lives 5 2/4 miles from her dad’s house. What fraction greater than one can you write 5 2/4?
mihalych1998 [28]
6 3/4 I think is a possible answer
8 0
3 years ago
A number with 2 decimal places, that is bigger than 4 1/5 but smaller than 4.25
LUCKY_DIMON [66]

Answer:

4.21, 4.22, 4.23,

4.24 (choose any one)

Step-by-step explanation:

since 4 1/5 is 4.20, so the numbers in between 4.20 and 4.25 are 4.21, 4.22, 4.23,

4.24 (choose any one)

3 0
3 years ago
A 650-pund snowmobile trailer is sitting on an exit ramp inclined at 40 degrees
Dima020 [189]
Um what. This doesn’t make sense. Your not even asking a question
6 0
3 years ago
A warehouse is 55 yards long, 35 yards wide, and 5 yards high. What is the area of the warehouse floor? If the warehouse is fill
amid [387]

Answer:

The area of the warehouse floor is 1925yd²

The volume of the boxes is 4812.5yd³

Step-by-step explanation:

First we have to calculate the area, for this we must multiply the length by the width

a = area

l = long = 55yd

w = width = 35yd

a = l * w

a = 55yd * 35yd

a = 1925yd²

to calculate the volume we have to multiply the area by the height

asks us for the volume for half the height so we have to divide the height by 2

a = area = 1925yd²

h = height = 5yd/2 = 2.5yd

v = volume

v = a * h

v = 1925yd² * 2.5yd

v = 4812.5yd³

The area of the warehouse floor is 1925yd²

The volume of the boxes is 4812.5yd³

5 0
3 years ago
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