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Alborosie
3 years ago
8

Use technology or a z-score table to answer the question.

Mathematics
1 answer:
AlexFokin [52]3 years ago
7 0

Answer:

D. 100

Step-by-step explanation:

1. Find the z-score: 165-176/11.4 = -1.2

2. Find the percentage of the z-score. Here it's 16.85%

3. Because we are searching for the amount of members that weigh MORE than 165 pounds and not LESS, we need to find the greater percentage by subtracting 16.85% from 100% which is 83.15%. This is the percentage of people that weigh more than 165 pounds.

4. Multiply the percentage by the number of members: 83.15%*120 = 99.78

5. Round it to a whole number because someone can't be 0.78 of a person. You get 100 members.

Also, I took the test :)

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3 years ago
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2 years ago
What is the equation in slope-intercept form of a line that is perpendicular to y=2x+2 and passes through the point (4, 3)?
andriy [413]

Answer:

y =  -  \frac{1}{2} x + 5

Step-by-step explanation:

<u>slope-intercept </u><u>form</u>

y= mx +c, where m is the slope and c is the y-intercept

Given line: y= 2x +2

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m= -1 ÷2

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Substitute the value of m into the equation:

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To find the value of c, substitute a pair of coordinates.

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3= -2 +c

c= 3 +2

c= 5

Thus, the equation of the line is y= -½x +5.

7 0
3 years ago
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sin θ = 1 /√2
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3 years ago
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