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3 years ago

If Steve throws the football 50 meters in 3 seconds, what is the average speed of the football? Speed = distance / time

Mathematics

2 answers:

pentagon [3]3 years ago

8 0

Answer:

I will write down each steps so look carefully.

First,You already know 50 meters equals 3 seconds.

Second,Write an equation.50 divide by 3

Third,You will get 16.667,but you need to round it to the hunderedths place

At last,you get 16.67 m/s

Step-by-step explanation:

Hope this helps and feel free to ask any part you don't understand

~marion

ankoles [38]3 years ago

6 0

Answer:

i used calculator

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Answer:

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Step-by-step explanation:

We are given that 36% of adults questioned reported that their health was excellent.

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Among 11 adults randomly selected from this area, only 3 reported that their health was excellent.

Now we are supposed to find the probability that when 11 adults are randomly selected, 3 or fewer are in excellent health.

i.e. $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

Formula : $P(x=r)=^nC_r p^r q ^ {n-r}$

p is the probability of success i.e. p = 0.36

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n = 11

So, $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

$P(x\leq 3)=^{11}C_1 (0.36)^1 (0.64)^{11-1}+^{11}C_2 (0.36)^2 (0.64)^{11-2}+^{11}C_3 (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!} (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}$

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3 years ago

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Step-by-step explanation:

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Answer:

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