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const2013 [10]
3 years ago
8

The rental rate for a cement mixer has a flat rate of $40 plus $20 for each day of the rental. The graph shows points representi

ng the total cost of the rental. Which linear equation, in slope-intercept form, that models the total cost of the rental over time? y = 20x +40 y = x + 50 y = 50x + 25 y = 25x y = 75x
Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0

Answer:

Step-by-step explanation:

y= 20x+40

y- is the cost of rental

x-number of days

20 is the slope

40-flat rate and the y-intercept is at (0,40)

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Answer:

0.2564\text{ pounds}

Step-by-step explanation:

The 90th percentile of a normally distributed curve occurs at 1.282 standard deviations. Similarly, the 10th percentile of a normally distributed curve occurs at -1.282 standard deviations.

To find the X percentile for the television weights, use the formula:

X=\mu +k\sigma, where \mu is the average of the set, k is some constant relevant to the percentile you're finding, and \sigma is one standard deviation.

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The difference between these two weights is 5.1282-4.8718=\boxed{0.2564\text{ pounds}}.

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Step-by-step explanation:

1 82100

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