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s344n2d4d5 [400]
2 years ago
5

The​ z-score with a​ two-tail probability of 0.55 is

Mathematics
1 answer:
katrin2010 [14]2 years ago
7 0

Answer:

-0.61

Step-by-step explanation:

0.55/2=0.275

Read 0.275 from normal distribution tables

Gives -0.61

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Step-by-step explanation:

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2 years ago
To find the area of a trapezoid use the expression 1/2h (b1 + b2), where h represents the height b1 represents the length of the
lana [24]

Answer:

7 ft²

Step-by-step explanation:

The formula for this is given in the problem

Plug in the given values

1/2 * 2 (4+3)

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7 0
3 years ago
Collins has a part-time job as a dog walker. The table below shows the amount of money Collins earned for different numbers of h
kondor19780726 [428]

Answer:

See below.

Step-by-step explanation:

Part A:

For Dog walking, he earns $30 for 5 hours of work.

He earns $36 for 6 hours of work.

$30/5 hours = $6/hour

$36/6 hours = $6/hour

He earns $6/hour dog walking.

For 8 hours, he earns 8 hours * $6/hour = $48

To earn $66, he works 66/6 = 11 hours.

5 30

6 36

8 48

11 66

Part B:

He earns $7/hour for yard work, so multiply the number of hours by 7 to find the money he earns.

Table for yard work

Hours     Money

5             $35

6             $42

8             $56

Part C:

For 5 hours, he earns $35 for yard work and $30 as a dog walker.

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3 0
3 years ago
I need help ASAP I need it by tomorrow ​
a_sh-v [17]

Answer:

1) 88:100=44:50=22:25 (simplest answer)

2) 12:88=3:22 (simplest answer)

5 0
3 years ago
∠x and ∠y are supplementary angles. ∠y measures 97੦ What is the measure of ∠x?
trasher [3.6K]

Answer:

83 degrees

Step-by-step explanation:

Supplementary angles are two angles whose sums add up to 180 degrees. Since you have one angle that is 97 degrees and one that is unknown, you can just subtract 97 from 180.

180 - 97 = 83 degrees

8 0
3 years ago
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