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jeyben [28]
3 years ago
6

The mean commuting time for resident of a certain metropolitan are is 38 minutes, with a standard deviation of 10 minutes. Assum

e that commuting times for this are are normally distributed. Using the z-score for a 23-minute commute above , what is the probabilty that a commute for a randomly chosen residet will be between 28 minutes and 58 minutes?
A. 92.3%
B. 81.9%
C. 76.4%
D.84.0%
Mathematics
1 answer:
ale4655 [162]3 years ago
8 0

the answer is 81.9% hope this question will be helpful

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Can anybody write an equation for the following word story:
Rudiy27
40=6.95c+5.25
The $40 is what you want it all to equal, so that goes to one side by itself.
The CDs are 6.95 each, so they get a variable to show that.
The 5.95 is added to that, showing that it's only charged once.
Then, all you have to do is solve for c, which is the number of CD's you can buy.
4 0
3 years ago
What's 3 and 2 5ths plus 1 and 1 5ths
navik [9.2K]
3 and 2/5 turns into 17/5
1 and 1/5 turns into 6/5
17+6= 23
23/5 simplifies to 4 and 3/5
6 0
3 years ago
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Della bought a tree sampling that was 2 1/4 feet tall. During the first year, it grew 1 1/6 feet. After two years, it was 5 feet
Pani-rosa [81]

Answer:

tree sampling: 2 1/4ft

through 1 year grown: 1 1/6ft

after two years growing: 5ft

1 1/6 coverted into a decimal is 0.16

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not sure if this is right, but hope it helps

6 0
4 years ago
A cylinder has a volume of 245 cubic units and a height of 5 units. The diameter of the cylinder is
Vikki [24]

Answer:

The diameter is twice that, or approx. 7.90 units.

Step-by-step explanation:

the equation for the volume of a cylinder of radius r and height h is

V = πr²h.  Here we need to calculate the diameter after having found the radius.  Solving V = πr²h for r², we get:

           V

r² = -----------

         πh

Substituting the given values, we obtain for r² the following:

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r² = ------------------------  = 15.6 units²

       3.14159(5 units)

Taking the square root of both sides, we get:

r = √15.60, or approx. 3.95 units.

The diameter is twice that, or approx. 7.90 units.

3 0
3 years ago
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Dilations… please help I will give you brainless
DochEvi [55]

Answer:

The scale factor is 0.5

Step-by-step explanation:

Divide.

2/1=2

4/2=2

4/2=2

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5/1.25=2

Now then, since this is a shrinking factor, divide 1 by the common outcome from the last section (2) to get 0.5

4 0
3 years ago
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