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irga5000 [103]
3 years ago
15

60 z+ 50 - 97z = - 37z + 49 How many solutions does this equation have ?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

no solutions

Step-by-step explanation:

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An important factor in selling a residential property is the number of times real estate agents show a home. A sample of 23 home
yanalaym [24]

Using the t-distribution, it is found that:

a. The <u>margin of error</u> is of 4.7 homes.

b. The 98% confidence interval for the population mean is (19.3, 28.7).

The information given in the text is:

  • Sample mean of \overline{x} = 24.
  • Sample standard deviation of s = 9.
  • Sample size of n = 23.

We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.

The confidence interval is:

\overline{x} \pm M

The margin of error is:

M = t\frac{s}{\sqrt{n}}

Item a:

The critical value, using a t-distribution calculator, for a two-tailed <u>98% confidence interval</u>, with 23 - 1 = <u>22 df</u>, is t = 2.508.

Then, the <em>margin of error</em> is:

M = t\frac{s}{\sqrt{n}} = 2.508\frac{9}{\sqrt{23}} = 4.7

Item b:

The interval is:

\overline{x} - M = 24 - 4.7 = 19.3

\overline{x} + M = 24 + 4.7 = 28.7

The 98% confidence interval for the population mean is (19.3, 28.7).

A similar problem is given at brainly.com/question/15180581

3 0
2 years ago
DONT HATE LOVE PLEASE HELP ME IM SORRY IM SLOW
kipiarov [429]

Answer:

first one and second one

Step-by-step explanation:

nothing change unless it said change by scale factor or something!!!

4 0
3 years ago
How many solutions does the equation -9(x+6)=-9x+108 have?
elixir [45]

Answer:

No solution

Step-by-step explanation:

Simplify the equation to solve for x.

-9(x+6)=-9x+108  Distribute

-9x-54=-9x+108 Combine like terms

+9x       +9x

0-54=108 Combine like terms

 +54  +54

0=162 No solution

4 0
3 years ago
The expression 6(x − 5) means
nordsb [41]

Answer:

6x - 30

Step-by-step explanation:

you do x-5 6 times

it could also be a word explanation

the value of x minus 5 and the result multiplied by 6

4 0
2 years ago
Titus had 1/2 can of paint. He used 2/3 to paint a tabletop. What fraction of a full can of paint did Titus use?
dimaraw [331]
I think its 1 1/6 idk
7 0
3 years ago
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