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VashaNatasha [74]
4 years ago
5

A preliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted. Included in the sampl

e were: 7 employees from Area A, 9 employees from Area B, and 12 employees from Area C. The test statistic was computed to be 4.91. What can we conclude at the 0.05 level?
Mathematics
1 answer:
andriy [413]4 years ago
5 0

There is a system glitch during the process of adding my answer here so i create a document file for the answer, you find it in the attachment below.

Download docx
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Combining like term 6k+7k
Nadya [2.5K]
13k is the answer :)
8 0
3 years ago
20 PTS! Please Help!!!! Will Give Brainliest!! This is a Khan Academy Problem!!!
klemol [59]

Using it's concept, the approximate perimeter of pentagon ABCDE is given as follows:

34.4 units.

<h3>What is the perimeter of a figure?</h3>

The perimeter of a figure is given by the sum of the lengths of it's outside dimensions.

In this problem, the vertices are in a coordinate-plane, hence the distances are found using the formula for the distance between two points.

<h3>What is the distance between two points?</h3>

Suppose that we have two points, (x_1,y_1) and (x_2,y_2). The distance between them is given by:

D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The length of segment AB is:

AB = \sqrt{(6 - 0)^2+(0 - 7)^2} = 9.2

The length of segment BC is:

BC = \sqrt{(6 - 3)^2+(0 + 4)^2} = 5

The length of segment CD is:

CD = \sqrt{(-3 -3)^2+(-4 + 4)^2} = 6

The length of segment DE is:

DE = \sqrt{(-6 + 3)^2+(0 + 4)^2} = 5

The length of segment EA is:

EA = \sqrt{(-6 +0)^2+(0 - 7)^2} = 9.2

Hence the perimeter is:

P = AB + BC + CD + DE + EA = 9.2 + 5 + 6 + 5 + 9.2 = 34.4 units.

More can be learned about the perimeter of a figure at brainly.com/question/18610622

#SPJ1

3 0
2 years ago
PLSSS HELLPPPPP ASAPPP
padilas [110]
I believe it would be 80
8 0
3 years ago
Read 2 more answers
7. Approximately 9 out of 100 people are left handed. Out of a population of 1740 people. How man are likely o be left
True [87]

Answer:

<em>Hello There.The correct answer is 157</em>

Because All you need to do is is Multiply 1740 x 9 then you need to add to 100 to get 15760 And that how you get the answer  1740 x 9 + 100 =15760.

3 0
3 years ago
Joanie decides to buy matching sweaters for herself and her 3 sisters. The regular price of the sweaters is $37. Joanie says if
Roman55 [17]

Answer:

Yes, it is possible if the sweaters on sale are $7.40 each.

Step-by-step explanation:

The sweaters each cost $37. To purchase all four (for herself and 3 sisters) without a sale would be 4(37)= $148.

40% off the regular price would be 0.40(148)= $59.20 savings. She would spend 148-59.2= $88.80.

Is it possible to buy two regular price sweaters and two on sale for $88.80?

2(37)=$74. If we subtract from the sales total, 88.80-74=14.80. This means the two sweaters on sale must each be $7.40. It is possible to save 40%.


8 0
4 years ago
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