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mixer [17]
1 year ago
9

8.

Mathematics
1 answer:
Fantom [35]1 year ago
8 0

Answer:

C 109

Step-by-step explanation:

First add all the known angles inside the triangle first to get 109°

Then since all angles in a triangle add to 180°

you take away 109 from 180 so

180-109 which equals 71

Then since all angles on a straight line add up to 180°

you take 71 from 180 so

180-71 = 109

so x = 109°

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In a Harris poll of 514 human resource professionals, 90% said that the appearance of a job applicant is most important for a go
jolli1 [7]

Answer:

( a ) 463 " human resource professionals " believe that the appearance of a job applicant is most important for a good first impression

( b )  Percent wise the confidence interval should be from about 86.6% to 93.4%

Step-by-step explanation:

I believe these first two parts here is sufficient enough to get you started!

" In a Harris poll of 514 human resource professionals, 90% said that the appearance of a job applicant is most important for a good first impression. Part A: Among the 514 human resource professionals who were surveyed, how many of them said that the appearance of a job applicant is most important for a good first impression?

Part B: Construct a 99% confidence interval estimate of the proportion of all human resource professionals believing that the appearance of a job applicant is most important for a good first impression. "

_____

( a ) We are given that n = 514, and p = 90%. The number of human resource professionals that said that the appearance of a job applicant is most important for a good first impression, should be the following -

514 x \frac{90}{100}

= \frac{46260}{100}

= 462.6

As the count of people can't be expressed as a fraction, the solution should be about 463 " human resource professionals. "

_____

( b ) Here the confidence level is 0.99 percent. Knowing that -

1 - ∝ = 0.99,

∝ = 1 - 0.99... = 0.01

Therefore, a 99% confidence interval estimate of the proportion of all human resource professionals believing that the appearance of a job applicant is most important for a good first impression should be calculated as directed in the attachment. By that the interval ranges as such -

0.8659 < p < 0.9341

And percent wise the confidence interval should be from about 86.6% to 93.4%

8 0
3 years ago
What is <br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%202x%20-%203" id="TexFormula1" title="f(x) = 2x - 3" alt="f(x) = 2x
xz_007 [3.2K]

Answer:

Solution

Correct option is C)

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

6 0
2 years ago
In a certain Algebra 2 class of 28 students, 23 of them play basketball and 12
erica [24]

Answer:

5/14

Step-by-step explanation:

P(A or B) = P(A) + P(B) − P(A and B)

25/28 = 23/28 + 12/28 − P(A and B)

P(A and B) = 10/28

P(A and B) = 5/14

3 0
3 years ago
Which of the following are the coordinates of a rectangle with a length of 8 units and width of 5
Snowcat [4.5K]

Answer:

Ans =C(4,1),(-4,1),(4,6),(-4,6)

8 0
2 years ago
Please help with this
bixtya [17]
The answer is C. Opposite sides have the exact same slope, and the shape is a quadrilateral.
4 0
3 years ago
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