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Hitman42 [59]
3 years ago
7

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 107 inches, and a standard

deviation of 12 inches. What is the probability that the mean
annual precipitation during 36 randomly picked years will be less than 109.8 inches?
0.4192
O 0.9192
Ο Ο Ο
O 0.5808
O 0.0808
Mathematics
1 answer:
garik1379 [7]3 years ago
5 0
0.0808 tankou baby shower na
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A motor is 85.4 % efficient: that is, the output is 85.4 % of the input. What is the input if the motor delivers 10.75 hp. ( Rou
Ludmilka [50]

Answer:

12.6 hp

Step-by-step explanation:

Represent the input by n.                              10.75 hp

Then 0.85n = 10.75 hp, and n (the input) is --------------- = 12.6 hp

                                                                           0.85

5 0
3 years ago
Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea
hjlf

Answer:

120 into a third and divide and the answer

Step-by-step explanation:

160

7 0
3 years ago
If p=4 and q=2, evaluate the following expression:30/p+q​
Gelneren [198K]

Answer:

5

Step-by-step explanation:

Given

\frac{30}{p+q} ← substitute p = 4 and q = 2

= \frac{30}{4+2} = \frac{30}{6} = 5

7 0
3 years ago
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You missed an A in your art course by only 7 points. Your point total for the course was 371. How many points were possible in t
Nikitich [7]

The number of points that  were possible in the course is 420

What is the required number of points for grade A?

The number of points the student needs to have to make grade A is the student's current points of 371 plus the 7 points remaining to make grade A

Total points for A=371+7

total points for grade A=378

90% of the course total=378

divide both sides 90

90% /90 =378/90

1%=378/90

100%=378/90*100

100%=420

Find out more about course points on:brainly.com/question/8429607

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3 0
2 years ago
A customer pay 18 for a DVD that originally cost 20. What is the percent decrease in the cost of the DVD
natima [27]

The discount is $2. 2/20 is 0.1 or 1/10 which as a percentage would be 10%. The discount of $2 is <u><em>10%</em></u> off.

8 0
3 years ago
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