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Lesechka [4]
3 years ago
7

As a surveyor, you measure an angle of elevation as 35.25 degrees. You are required to record all measurements in fraction form.

What is the degree measure of the angle written as a fraction?
Mathematics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

35 1/4

Step-by-step explanation:

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Write 17 as a decimal. <br> ----<br> 20
Kay [80]

Answer:

0.85

Step-by-step explanation:

17/20=0.85

4 0
3 years ago
9. A pyramid has a square base with an area
Vlad [161]
  • Answer:

<em>48 ft</em>

  • Step-by-step explanation:

<em>A  = 144ft² = l²</em>

<em>144 = l²</em>

<em>l = √144</em>

<em>l = 12 ft</em>

<em>P = 4l</em>

<em>= 4×12ft</em>

<em>= 48 ft</em>

4 0
3 years ago
These data can be approximated quite well by a N(3.4, 3.1) model. Economists become alarmed when productivity decreases. Accordi
CaHeK987 [17]

Answer:

First part

P(X< 3.4-0.6*3.1) = P(X

And for this case we can use the z score formula given by:

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

And using this formula we got:

P(X

And we can use the normal standard table or excel and we got:

P(Z

Second part

For the other part of the question we want to find the following probability:

P(-1.715

And using the score we got:

P(-1.715

And we can find this probability with this difference:

P(-1.65< Z< 1.210)=P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the data of a population, and for this case we know the distribution for X is given by:

X \sim N(3.4,3.1)  

Where \mu=3.4 and \sigma=3.1

First part

And for this case we want this probability:

P(X< 3.4-0.6*3.1) = P(X

And for this case we can use the z score formula given by:

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

And using this formula we got:

P(X

And we can use the normal standard table or excel and we got:

P(Z

Second part

For the other part of the question we want to find the following probability:

P(-1.715

And using the score we got:

P(-1.715

And we can find this probability with this difference:

P(-1.65< Z< 1.210)=P(Z

8 0
3 years ago
Which is another way to write this number? (3 x 1,000) + (3 x 10) (3 x 1/100) + (3 x 1/1000)
elena55 [62]
The answer should be 3030.033, since 3*1000 is 3000, 3*10 is 30, 3*1/100 is 0.03, and 3*1/1000 is 0.003.
3 0
3 years ago
Read 2 more answers
Find the common ratio of the geometric sequence − 1 , − 9 , − 81 ,
frozen [14]

Step-by-step explanation:

everything can be found in the picture

7 0
3 years ago
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