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Neporo4naja [7]
3 years ago
8

Ron runs at a speed of 3 1/2 miles in 1/2 of an hour.How fast is his average speed per hour?

Mathematics
2 answers:
labwork [276]3 years ago
6 0
Distance = rate times time.  If you want the rate,   solve this equation for it.
                                                     3.5 mi
Correct result:  rate (speed) = ---------------- = 7 mph (average speed)
                                                      0.5 hr
skad [1K]3 years ago
4 0
I could be oh so wrong but i think it is 62/4
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Answer:

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Step-by-step explanation:

x/3+5=6.8

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Given this function: f ( x )=−2cos(4 πx ) Find the following:
Neporo4naja [7]

Answer:

Period =½

Equation of midline, y=0

Maximum =2

Minimum=-2

Step-by-step explanation:

The given function is

f(x) =  - 2 \cos(4 \pi \: x)

The period is given by:

\frac{2\pi}{b}  =   \frac{2\pi}{4\pi} =  \frac{1}{2}

The equation of the midline is y=0 since there is no vertical shift

The amplitude of this function is 2 so the range is -2≤y≤2.

Hence the maximum value is 2 and minimum value is -2

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The answer will be 30cm

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