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anyanavicka [17]
3 years ago
11

The graph below shows the relationship between the number of words typed and the number of minutes typed by a business secretary

.
Based on the information in the graph , what is the unit rate in words per minute?

A. 100 Words per minutes
B. 75 Words per minutes
C. 60 Words per minutes
D. 50 Words per minutes

Correct answer will get brainiest!

Mathematics
1 answer:
Tamiku [17]3 years ago
7 0
It is 75wpm because the slope is 3 up and 2 right which is 150/2
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A manufactured product has a length that is normally distributed with a mean of 12 cm. The product will be unusable if the lengt
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Answer:

a) σ  = 0,1612

b) P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

Step-by-step explanation:

NOTE: I assume the unusable length s 11,5 and less

a) For a normal distribution, the probability of P = 0,01 corresponds to z(score) =  -3,1 then:

- 3,1 = ( X - μ₀ ) / σ

- 3,1 = (11,5 - 12 )/ σ

-3,1 = - 0,5 / σ

σ  = 0,1612

b) If σ = 0,1612

P [ 11,75 < X < 12,35]

z₁ (score)  = ( 11,75 - 12 ) / 0,1612

z₁  = - 0,25/ 0,1612

z₁  = -1,55

From z table  P [ 11,75 < X] = 0,0606

z₂ (score) = ( 12,35 - 12) / 0,1612

z₂ = 0,35 / 01612

z₂ = 2,17

From z table  P [ X < 12,35] = 0,9850

Finally P [ 11,75 < X < 12,35] = 0,9850 -  0,0606

P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

5 0
3 years ago
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Answer:

$660

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Then, 880*0.2 (deduction of federal income tax rate) = 176 dollars

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Let me know if im wrong!

3 0
3 years ago
Chris has 115$ to spend at a shopping mall . If he decides to spend $42 on clothing and $37 on food how much money will he have
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Answer:

$36 left

Step-by-step explanation:

42+37=79

115-79=36

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3 years ago
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