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rodikova [14]
3 years ago
12

A giraffe can travel 800 feet in 20 seconds. Write a direct variation equation for the distance traveled any time | Please expla

in / show work
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
8 0
The direct variation equation is:
d=kt
where d is the distance that the giraffe travels
k is the constant of variation
and t is time
Now we are told that the giraffe can travel 800 ft in 20 seconds, so we can solve for the constant of variation (k)
800=k(20) divide both sides by 20
k=40-------------and the units are ft per sec
So now we can write
d=40t
ck
d=40t
800ft=40*20 ft
800 ft= 800 ft

Hope this helps!
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Given a fair dice and tossing a fair coin sixteen times.

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The probability lies between 0 and 1.

Probabiltiy of coming head when the coin is tossed 1 time is 0.5 and probability of coming tails is also 0.5.

Let X shows the sum of heads while tossing.

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We can find the probability using binomial theorem.

=16C_{12} (0.5)^{12} (0.5)^{2}

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Hence the probability that the total number of heads in all the coin tosses equals 12 is  0.0273.

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A

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======================

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