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lesantik [10]
3 years ago
10

At a recent track meet, the fastest time in the 40-yard dash was 4.37 seconds, and the slowest time was 5.08 seconds. What is th

e difference between the fastest runner and the slowest time?​
Mathematics
2 answers:
Xelga [282]3 years ago
7 0

all you have to do is subtract 4.37 from 5.08 which is 0.71 seconds

Marina CMI [18]3 years ago
6 0

Answer:

.71seconds

Step-by-step explanation:

just subtract 4.37 from 5.08

should set it up like this:

5.08-4.37

so always subract the smallest numer from he bigger number in questions like this

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A sample of 300 FM residents was taken and 135 said their favorite season was summer. Calculate a 99% confidence interval for th
erma4kov [3.2K]

Answer:

The 99% confidence interval for the proportion of FM residents whose favorite season is summer is between (0.376, 0.524).

The lower bound of this interval is 0.376.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 300, \pi = \frac{135}{300} = 0.45

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.45 - 2.575\sqrt{\frac{0.45*0.55}{300}} = 0.376

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.45 + 2.575\sqrt{\frac{0.45*0.55}{300}} = 0.524

The 99% confidence interval for the proportion of FM residents whose favorite season is summer is between (0.376, 0.524).

The lower bound of this interval is 0.376.

3 0
3 years ago
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A block of cheese measuring 5 inches by 2 inches by 3 inches is coated in a very thin layer of wax. The cheese is sliced into 24
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Answer:

.......the answer is 64 cubes

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A
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B same as above
question (a) asks you to solve for y because x is -2
(b) asks you to solve for x because y is known
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What is the slope of the line shown
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