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AfilCa [17]
3 years ago
11

Stan drove for h hours at a constant rate of r miles per hour. How many miles did he cover during the final 20 minutes of his dr

ive?
Mathematics
2 answers:
valentinak56 [21]3 years ago
6 0

r multiplied by 1/5h

expeople1 [14]3 years ago
3 0

Answer:

r/3

Step-by-step explanation:

Its right

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Given that z is a standard normal random variable, find z for each situation. The area to the right of z is .1314. (Round to two
Mumz [18]

Answer:

P(Z>0.1314) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.1314,0,1,TRUE)"  or the standard normal table

P(Z

We can use the following excel code: "=NORM.DIST(0.75,0,1,TRUE)"  or the standard normal table.

P(Z>0.01) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.01,0,1,TRUE)"  or the standard normal table

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

P(Z>0.1314) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.1314,0,1,TRUE)"  or the standard normal table

P(Z

We can use the following excel code: "=NORM.DIST(0.75,0,1,TRUE)"  or the standard normal table.

P(Z>0.01) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.01,0,1,TRUE)"  or the standard normal table

6 0
4 years ago
Simplify the following expression. (0.5x – 3)(0.5x + 3)​
Aloiza [94]

Answer:

0.25x^2-9

Step-by-step explanation:

Difference of squares converse:

0.25x^2-9

4 0
3 years ago
Read 2 more answers
What is the vertex of the parabola
zhannawk [14.2K]

Answer:

(1,-4) the vertex will always be the lowest point

Step-by-step explanation:

lowest point my dude

4 0
3 years ago
Read 2 more answers
Using the following intervals for the scores on a 30-point quiz, how many x's would fall over the interval of 19-21 on a line pl
hodyreva [135]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
What is the simplified expression for the expression below<br> 4(3x-2)+ 6x(2-1)
kozerog [31]

Answer:

18x - 8

Step-by-step explanation:

First, distribute the 4 to the first set of parentheses:

4(3x - 2) + 6x(2 - 1)

12x - 8 + 6x(2 - 1)

Then, simplify the second set of parentheses:

12x - 8 + 6x(1)

Simplify and add like terms:

12x - 8 + 6x

18x - 8 is the simplified expression

4 0
3 years ago
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