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inessss [21]
3 years ago
6

PLZZZ FASTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer:

130°

130-67=

63÷3=

21

x=21

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evablogger [386]

Answer:

B.77.4%

Step-by-step explanation:

Mean wage (μ) = $4.50

Standard deviation (σ) = $0.50

For nay given salary X, the z-score is given by:

z=\frac{X-\mu}{\sigma}

For X = $3.75, the z-score is:

z=\frac{3.75-4.50}{0.50}\\z=-1.5

For X = $5.00, the z-score is:

z=\frac{5.00-4.50}{0.50}\\z=1

A z-score of -1.5 corresponds to the 6.68th percentile, while a score of 1 corresponds to the 84.13th percentile. Therefore, the percentage of workers getting paid between $3.75 and $5.00 an hour is:

P=84.13-6.68\\P=77.45\%

The answer is alternative B.77.4%

8 0
3 years ago
PLZ HELP ANSWER AND EXPLAIN. (photo) #8
evablogger [386]
The picture shown is a unfolded rectangular prism.

The formula to find the surface area of a rectangular prism is:

A = 2(WL+HL+HW)

(W = width, L = Length, H= Height)

So we would need to determine the Height, Length, and Width first, and then plug them into the formula and solve for the area.

In this case:
The height is: 4 cm 
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The width is: 6.4 cm

Now that we have determined the height, length, and width, we simply plug them into the formula I showed earlier. 

In this case the answer would be 269.6.

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8 0
3 years ago
Select the correct answer.<br> Which table shows a proportional relationship between x and y?
wolverine [178]

Answer: The answer would be choice C because there is a constant rate of change of 3 :)

Step-by-step explanation:

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3 years ago
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simple, there's a flat fee for 1 ounce, then 23 cents for each ounce following.

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7.3 ounces + 1 ounces (from the flat fee we subtracted)

which equals 8.3

7 0
2 years ago
Select all the proper fractions .
allsm [11]

<em>Answer:</em>

<em>B</em>

<em>C</em>

<em>F</em>

<em>Step-by-step explanation:</em>

<em>6/7</em>

<em>12/17</em>

<em>6/25</em>

<em>Best,</em>

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