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miss Akunina [59]
3 years ago
7

• Write (9m)' without exponents. + : 4 9 m 9m Ih

Mathematics
1 answer:
fenix001 [56]3 years ago
8 0

Answer: 9m x 9m x 9m x 9m

Step-by-step explanation:

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A random sample of 10 employees of a company was selected to estimate the mean one-way commute time for all employees at the com
liberstina [14]

Answer:

The margin of error is of 2.262\frac{6}{\sqrt{10}} = 4.29

Step-by-step explanation:

We have the standard deviation for the sample. So the T-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.262

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.262\frac{6}{\sqrt{10}} = 4.29

In which s is the standard deviation of the sample and n is the size of the sample.

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2 years ago
What is the slope of the line? NEED ASAP WILL MAKE BRAINLIEST
Brrunno [24]

Answer:

2

Step-by-step explanation:

To find the slope, we  use the equation

m = (y2-y1)/(x2-x1)

Since the have the points (2,-4) and (4,0)

m = (0--4)/ (4-2)

   = (0+4)/(4-2)

   = 4/2

   =2

7 0
2 years ago
hich of these is a question you might ask before reading the selection titled, “Credit Cards-Credit Where Credit’s Due”? a. Do I
ch4aika [34]

Answer:

what do you mean what do you need me to work out

Step-by-step explanation:

5 0
3 years ago
An item cost $480 before tax , and tge sales tax is $9.60
elena-s [515]

Answer:

0.02 ; 2%

Step-by-step explanation:

Given :

Cost of item = $480

Tax amount on item = $9.60

The sales tax rate = tax amount on item / cost of item

Sales tax rate = $9.60 / $480 = 0.02

As a percentage :

0.02 * 100% = 2%

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3 years ago
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IrinaVladis [17]
Steps:

A=bh/2

A= (18ft)(6ft)
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A = 108
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A= 54ft^2
4 0
3 years ago
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