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bulgar [2K]
3 years ago
14

Q. If heights of 3rd graders follow a normal distribution with a mean of 52 inches and a standard deviation of 2.5 inches, what

is the z score of a 3rd grader who is 47 inches tall?
A. z=-5
B. z=-2
C. z=2
D. z=5
Mathematics
1 answer:
zaharov [31]3 years ago
3 0

Answer:

-2

Step-by-step explanation:

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(a): How many miles does the train travel per gallon?<br> (b):What is the slope of the graph?
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we distance travelled per gallon =total distance travelled/galoons of fuel used.

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for part b) slope=rise/run

m=(y2-y1)/(x2-x1)

y2=400  y1=0 x1=0 x2=200

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5 0
2 years ago
Mike is making a scale model of his favorite car. The actual car is 8 feet long and 4 feet wide. Mike wants his model to be 12 i
alexira [117]
8/4=12/x
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5 0
3 years ago
B = 54°, b=15, c=<br> c = ? (Round answers to<br> the nearest hundredth.)
zaharov [31]

Answer:

18.54

Step-by-step explanation:

sine is opposite/hypotenuse, and you have opposite (b=15), so use that

sin(54) = 15/c

c = 15/sin54

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c = 18.54

8 0
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What fraction is equivalent to 1/8??
ASHA 777 [7]

Answer:

2/16

5/40

Step-by-step explanation:

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