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shepuryov [24]
3 years ago
13

Please click here and help me

Mathematics
1 answer:
Alex17521 [72]3 years ago
6 0

Answer:

A. ∠AOD = 170°

Step-by-step explanation:

103° + 55° + 12° = 170°

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Julie runs 1 1/2 miles in 1/3 hour.How many miles will she run per hour at the same speed?
konstantin123 [22]
Multiply 3 * 1 1/2 to find how many miles she runs per hour

1 1/2 * 3

3/2 * 3

9/2

4 1/2       She will run 4 1/2 or 4.5 miles per hour.
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3 years ago
Im going to give 20 points for this question please answer.
bearhunter [10]
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What is 3÷34<br><br> A. 2.25<br> B. 3<br> C. 4<br> D. 12
harina [27]

Answer:

I think it is 12

(D)

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3 years ago
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Selene's checking account balance was -$33, and then she withdrew $42 more. What is her checking account balance after the withd
Rainbow [258]

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7 0
3 years ago
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The population mean annual salary for environmental compliance specialists is about ​$62,000. A random sample of 32 specialists
lakkis [162]

Answer: 0.002718

Step-by-step explanation:

Given : The population mean annual salary for environmental compliance specialists is about ​$62,000.

i.e. \mu=62000  

Sample size : n= 32

\sigma=6200

Let x be the random variable that represents the annual salary for environmental compliance specialists.

Using formula z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}, the z-value corresponds to x= 59000 will be :

z=\dfrac{59000-62000}{\dfrac{6200}{\sqrt{32}}}\approx\dfrac{-3000}{\dfrac{6200}{5.6568}}=-2.73716129032\approx-2.78

Now, by using the standard normal z-table , the probability that the mean salary of the sample is less than ​$59,000 :-

P(z

Hence, the probability that the mean salary of the sample is less than ​$59,000= 0.002718

3 0
3 years ago
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