Which of the following equations is an example of inverse variation between the variables x and y?

2 answers:

Leni [432]2 years ago

4 0

Answer:

Step-by-step explanation:

A and B are examples of direct variations because there is a nonzero constant k in each such that y=kx. A's k=1/12 while B's k=12.

D is not a direct or inverse variation because of the plus/minus constant.

C is an inverse variation because it has form y=k/x where k is nonzero. This k=12.

solong [7]2 years ago

4 0

Answer:

Step-by-step explanation:

The equation representing inverse variation is

y = $\frac{k}{x}$ ← k is the constant of variation

The only equation that fits this description is

y = $\frac{12}{x}$ → C

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natka813 [3]

Answer:

C) 0.179

Step-by-step explanation:

Since the trials are independent, this is a binomial distribution:

Recall:

Binomial Distribution --> $P(k)={n\choose k}p^kq^{n-k}$
$P(k)$ denotes the probability of $k$ successes in $n$ independent trials
$p^k$ denotes the probability of success on each of $k$ trials
$q^{n-k}$ denotes the probability of failure on the remaining $n-k$ trials
${n\choose k}=\frac{n!}{(n-k)!k!}$ denotes all possible ways to choose $k$ things out of $n$ things