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murzikaleks [220]
3 years ago
14

Question

Mathematics
1 answer:
shusha [124]3 years ago
5 0

Answer:

5x cars

Step-by-step explanation:

(# of cars washed) = (# cars washed per day)(# of days)

                                        =  (x/day)               *       (5 days)   = 5x

                                                                                                   cars                          

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5.According to the Bureau of Labor Statistics, in calendar year 2000, the average duration of unemployment was 12.7 weeks, with
Ket [755]

Answer:

Probability that a randomly selected individual who was unemployed in 2000 would have been unemployed between 12 and 13 weeks is 0.83144 .

Step-by-step explanation:

We are given that according to the Bureau of Labor Statistics, in calendar year 2000, the average duration of unemployment was 12.7 weeks, with a standard deviation of 0.3 weeks.

Let X = randomly selected individual who was unemployed in 2000

Since distribution is approximately normal, so X ~ N(\mu=12.7,\sigma^{2} = 0.3^{2})

The z score probability distribution is given by;

                 Z = \frac{X-\mu}{\sigma} ~ N(0,1)

where, \mu = population mean = 12.7 weeks

            \sigma = population standard deviation = 0.3 weeks

So, the probability that a randomly selected individual who was unemployed in 2000 would have been unemployed between 12 and 13 weeks is given by = P(12 < X < 13) = P(X < 13) - P(X <= 12)

P(X < 13) = P( \frac{X-\mu}{\sigma} < \frac{13-12.7}{0.3} ) = P(Z < 1) = 0.84134

P(X <= 12) = P( \frac{X-\mu}{\sigma} < \frac{12-12.7}{0.3} ) = P(Z < -2.33) = 1 - P(Z <= 2.33) = 1 - 0.99010

                                                                                                   = 0.0099

Therefore, P(12 < X < 13) = 0.84134 - 0.0099 = 0.83144 .

4 0
3 years ago
The area of a triangle is discrete or continuous
grin007 [14]

Answer:

Continuous

Step-by-step explanation:

The area of a triangle is continuous. It can be any measure of fraction or decimal depending on the side lengths. It has no restrictions to be only whole  numbers or a specific set of numbers.

6 0
3 years ago
Negative symbol as opposite | HELP PLS
Pepsi [2]

Answer: I would have to say its zero

Sorry if I got it wrong

4 0
2 years ago
Read 2 more answers
The width of a rectangular garden is 4.5 meters shorter than its length which is x meters.
Contact [7]

Answer:

  A.  width = x - 4.5

  B.  111 = 2(x + (x -4.5))

Step-by-step explanation:

A. The width is 4.5 meters shorter than x, so is x -4.5.

__

B. The perimeter is twice the sum of length and width. It is 111 meters, so an equation for it could be ...

  111 = 2(x + (x -4.5))

4 0
3 years ago
A map has a scale of 2 inches = 20 kilometers. If the distance between two cities on the map is 10 inches, what is the actual di
Brilliant_brown [7]
100 kilometers you solve with a proportion 2/20=10/x
2x=200 so x=100
5 0
3 years ago
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