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nirvana33 [79]
3 years ago
12

What are the answers to 13, 14, 16, and 17? pls help it will mean a lot :)

Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0
13. - 4/5

14. 11/25

16. 8/9

I don’t know what is an answer of 17 sorry...:(
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14 dollars because it’s only 75 % out of. 8
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In a recently administered iq test, the scores were distributed normally, with mean 100 and standard deviation 15. what proporti
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To solve for proportion we make use of the z statistic. The procedure is to solve for the value of the z score and then locate for the proportion using the standard distribution tables. The formula for z score is:

z = (X – μ) / σ

where X is the sample value, μ is the mean value and σ is the standard deviation

 

when X = 70

z1 = (70 – 100) / 15 = -2

Using the standard distribution tables, proportion is P1 = 0.0228

 

when X = 130

z2 = (130 – 100) /15 = 2

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Therefore the proportion between X of 70 and 130 is:

P (70<X<130) = P2 – P1

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P (70<X<130) = 0.9544

 

Therefore 0.9544 or 95.44% of the test takers scored between 70 and 130.

6 0
3 years ago
Jenna has at most $100 to spend on clothes. She wants to buy a pair of jeans for $29 and spend the rest on shirts. Each shirt co
maw [93]

Answer:

5 shirts (read explanation)

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x=5.1

She can buy 5 shirts

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1920.2923 in expanded form and in words
STALIN [3.7K]

Answer:

1,000  

+ 900  

+ 20  

+ 0  

+   0.2

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+   0.002

+   0.0003

Step-by-step explanation:

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Step-by-step explanation:

The equation has to be just x = y

There cannot be another number on the same side as the variable

Now that we did that, the equation is 9x = 0

x = 0

Well, that was easy lol

6 0
3 years ago
Read 2 more answers
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