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devlian [24]
3 years ago
12

perrys bikes rents bikes for $18 plus $4 per hour. Lea paid $42 to rent a bike for how many hours did she rent the bike?

Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0
She rented the bike for 6 hours
ser-zykov [4K]3 years ago
3 0

Answer:

5 hours 30 min

Step-by-step explanation:

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The heights of adult males in the United States are approximately normally distributed. The mean height is 70 inches (5 feet 10
steposvetlana [31]

Using the normal distribution, it is found that the probability is 0.16.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem, the mean and the standard deviation are given by, respectively, \mu = 70, \sigma = 3.

The proportion of students between 45 and 67 inches is the p-value of Z when <u>X = 67 subtracted by the p-value of Z when X = 45</u>, hence:

X = 67:

Z = \frac{X - \mu}{\sigma}

Z = \frac{67 - 70}{3}

Z = -1

Z = -1 has a p-value of 0.16.

X = 45:

Z = \frac{X - \mu}{\sigma}

Z = \frac{45 - 70}{3}

Z = -8.3

Z = -8.3 has a p-value of 0.

0.16 - 0 = 0.16

The probability is 0.16.

More can be learned about the normal distribution at brainly.com/question/24663213

3 0
2 years ago
Each football game begins with a kickoff. The formula h = - 16t ^ 2 + 64t , where h is the height in feet of the football at t s
Strike441 [17]

Answer:I don't know srry :(

Step-by-step explanation:by the way I like ur pfp

5 0
3 years ago
Which of the following is equal to the rational expression when x ≠ -4 or 16
melomori [17]

Answer:

A

Step-by-step explanation:

(x^(2)-16)/((x-16)(x+4))=

[(x+4)(x-4)]/(x-16)(x+4)=

x-4/x-16

6 0
3 years ago
Read 2 more answers
Which number can each term of the equation be multiplied by to eliminate the decimals before solving? -m+0.02+2.1m=-1.45-4.81m
Andrews [41]
The number that each term of the equation be multiplied by to eliminate the decimals before solving -m+0.02+2.1m=-1.45-4.81m

It would be better to group all similar numbers.
<span>-m+0.02+2.1m=-1.45-4.81m
</span>-m + 2.1m + 4.81m = -1.45 - 0.02
5.91m = -1.47

The equation shown above, in order for us to eliminate the decimal, 
we need to divide 5.91.



4 0
3 years ago
Read 2 more answers
Write down the fifth term and the general term of<br> following sequence : 8,4,2,...
morpeh [17]

Answer:

The terms listed are 8, 4, and 2 in that order. From what we can see, it is a geometric sequence whose next term is gotten by dividing the previous term by 2. The formula for finding the nth term of a  geometric sequence is given as ar^{n-1}, where

a = first term which is 8

r = common ratio, 1/2 or 0.5

n = is the term we're looking for, 5

Putting all these together into one solid equation, we have

8 * 0.5^{5-1} =

8 * 0.5^{4} =

8 * 0.0625 = 0.5

Therefore, the 5th term of the sequence is 0.5. Similar example can be seen here brainly.com/question/9300199

8 0
3 years ago
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