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anastassius [24]
4 years ago
5

The distance driven in miles is proportional to the time driven in hours. Ebony drives at a constant rate and plots her progress

on a coordinate plane. The point (3, 180) is plotted. At what rate is Ebony driving in miles per hour?
A) 40 mph
B) 50 mph
C) 60 mph
D) 70 mph
Mathematics
1 answer:
kati45 [8]4 years ago
5 0
Ebony is driving 60 mph.
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Answer:

n = -2

Step-by-step explanation:

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Answer:

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A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackth
Anna11 [10]

Complete Question

A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places

Answer:

0.1151

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

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σ is the population standard deviation = $4

We are solving for x < 45.20

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z = 45.20 - 50/4

z = -1.2

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P(x<45.20) = 0.11507

Approximately to 4 decimal places = 0.1151

Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151

8 0
3 years ago
Marion flipped a coin three times. What is the probability that exactly two heads appeared?
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Probability of getting heads: 1/2 

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15. What is the dependent and independent variable in this scenario?
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The dependent variable is 5 and the independent is 15
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