Help me with this assignment problem

Mathematics

1 answer:

Rus_ich [418]2 years ago

3 0

Answer:

1/27

step by step explanation

1x1x1=1

3x3x3=27

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2x+y=-6<br><br>what are the x and y intercepts

Deffense [45]

Answer:

Step-by-step explanation:

y intercept

To find the y intercept, make x = 0

2(0) + y = - 6 zero times anything is 0

0 + y = -6

The y intercept is (0,-6)

x intercept

The x intercept happens when y = 0

2x + 0 = -6 zero added to anything = whatever you started with.

2x = - 6 Divide by 2

2x/2 = -6/2 Do the division

x = - 3

The x intercept = (-3,0)

5 0

2 years ago

Order the following from greatest to least: -12,12,-19,1 and 1/2,5.....

den301095 [7]

-19, -12, 1/2, 1, 5, 12 ----> least to greatest
12, 5, 1, 1/2, -12, -19 ----> greatest to least

Do the same as the last one, starting with the largest negative number, and ending with the largest positive number. The only difference in this case is that it is greatest to least. I tend to go from least to greatest first and then flip it around to get greatest to least (:

3 0

2 years ago

At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 18 m

Colt1911 [192]

Answer:

99.7% of customers have to wait between 8 minutes to 30 minutes for their food.

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 18 minutes

Standard Deviation, σ = 4 minutes

We are given that the distribution of amount of time is a bell shaped distribution that is a normal distribution.

Empirical Formula:

Almost all the data lies within three standard deviation from the mean for a normally distributed data.
About 68% of data lies within one standard deviation from the mean.
About 95% of data lies within two standard deviations of the mean.
About 99.7% of data lies within three standard deviation of the mean.

Thus, 99.7% of the customers have to wait:

$\mu -3\sigma = 18-3(4) = 6\\\mu +3\sigma = 18+3(4) = 30$