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natita [175]
3 years ago
9

7. As part of a research study you measure participants' heights in inches. The average height of all participants is 70 inches,

and the standard deviation is 3 inches. One of your participants, Rachel, who is 65 inches tall, wants to know what percentage of the participants are taller than she is. What is the answer to her question?
Mathematics
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

I suggest asking your professor for help.

Step-by-step explanation:

sorry I couldn't help this time.

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Answer the following regarding the letters in the word
Lera25 [3.4K]

Answer: a: 4:5, b: 5:4, c: 5:9

Step-by-step explanation:

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3 years ago
My shadow in the back. Yeah no I need help. One again.
Neporo4naja [7]

1 2/5 - (-3/5)

First, we're going to convert 1 2/5 into an improper fraction.

1 2/5 = 7/5

7/5 - (-3/5)

Subtracting a negative is the same as adding, so the problem will look like:

7/5 + 3/5

The denominators are the same, so we just add the numerators.

The answer is 10/5, or 2.

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3 years ago
What is a formula for the nth term of a given sequence
IceJOKER [234]

Answer:

a_n=-12-4(n-1)

Step-by-step explanation:

The given sequence is

-12,-16,-20...

The first term of this sequence is a_1=-12.

The common difference is

d=-16--12

d=-16+12=-4

The nth term of this arithmetic sequence is;

a_n=a_1+d(n-1)

We substitute the values for the first term and the common difference to obtain;

a_n=-12-4(n-1)

5 0
3 years ago
Read 2 more answers
Please help solve this SAT math problem. I have 4 more like these so need help with this so that I can solve the rest by myself.
stealth61 [152]

The notation just means

(f/g)(-4) = f(-4) / g(-4)

If f(x) = x² + 2 and g(x) = 1 - 3x, then

f(-4) = (-4)² + 2 = 16 + 2 = 18

g(-4) = 1 - 3 (-4) = 1 + 12 = 13

and so

(f/g)(-4) = 18/13

8 0
2 years ago
The area of a triangle varies jointly with the lengths of its base and height. A triangle with a base of 10 ft and a height of 4
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Answer:

<h2>12 square ft </h2>

Step-by-step explanation:

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<h2>MARK ME AS BRAINLIST</h2><h3>PLZ FOLLOW ME</h3>
3 0
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