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Fudgin [204]
3 years ago
10

Im lost How to solve it

Mathematics
1 answer:
Firlakuza [10]3 years ago
6 0
The answer to this question is:

9x+8/3x^2
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The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This dist
alexira [117]
<h3>Answer:   83.85%</h3>

This value is approximate.

==========================================================

Explanation:

Let's compute the z score for x = 40

z = (x-mu)/sigma

z = (40-47)/7

z = -1

We're exactly one standard deviation below the mean.

Repeat these steps for x = 68

z = (x-mu)/sigma

z = (68-47)/7

z = 3

This score is exactly three standard deviations above the mean.

Now refer to the Empirical Rule chart below. We'll add up the percentages that are between z = -1 and z = 3. This consists of the two pink regions (each 34%), the right blue region (13.5%) and the right green region (2.35%). These percentages are approximate.

34+34+13.5+2.35 = 83.85

<u>Roughly 83.85%</u> of the one-mile roadways have between 40 and 68 potholes.

5 0
2 years ago
What is the equation of the line whose slope is 1/3 and y-intercept is -4?
faltersainse [42]

Answer:

y=1/3x-4

Step-by-step explanation:

the slope-intercept format of the line is y=mx+b, where m is the slope and b is the y intercept.

we are given the slope (1/3) and the y intercpet (-4).

substitute the numbers into the equation

y=1/3x-4

the answer is y=1/3x-4

hope this helps!

3 0
2 years ago
Calculate the percent of change: 50 pounds to 35 pounds.
Vladimir [108]
30 percent change is the answer
7 0
3 years ago
Find the radius of the circle. please.
labwork [276]

Answer:

12in

Step-by-step explanation:

2r = 24

r = 12

8 0
2 years ago
Read 2 more answers
Can someone help me please ill give brainliest
emmasim [6.3K]
The value of m is .42 if not that then 36
8 0
3 years ago
Read 2 more answers
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