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Oksanka [162]
3 years ago
10

I neeed help asap please

Mathematics
1 answer:
alexandr1967 [171]3 years ago
6 0

Answer:

last option.

linear pair

.............

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Find the unit rate of 3÷12​
yKpoI14uk [10]

Answer:

1/4

Step-by-step explanation:

3/12

Simplify. Both numbers can be divided by 3.

3/12 = 1/4

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3 years ago
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Solve 3x2 − 7x − 2 = 0.
Daniel [21]

The answer think will be x=4/7

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3 years ago
The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 91 inches, and a standard d
Vesna [10]
The sample std. dev. will be (14 inches) / sqrt(49), or (14 inches) / 7, or 2 inches.

Find the z score for 93.8 inches:
       93.8 inches - 91.0 inches          2.8 inches
z = ------------------------------------- = ----------------- = 1.4
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Now find the area under the standard normal curve to the left of z = +1.4.

My calculator returns the following:

normalcdf(-100,1.4) = 0.919.  This is the probability that the mean annual precipitation during those 49 years will be less than 93.8 inches.
 
4 0
3 years ago
Tyler earned $74 at his job when he worked for 6 hours. What was his hourly pay rate in hours per dollar. HOURS PER DOLLAR NOT D
Andrej [43]

Answer:12.33

Step-by-step explanation:

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3 years ago
Solve for Z. 42=-7(z-3)
elixir [45]

42/7=Z-3

6=Z-3

Z=6+3

Z=9

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3 years ago
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