3 years ago

Brian read 2/15of his novel in 20minutes if he reads at the same rate what portion of his novel can he read in one hour

1 answer:

4 0

There are 60 minutes in 1 hour. This is three times sixty. So Brian will have read three times as much of his novel in 60 minutes as he did in 20 minutes.

Brian will have read 2/5 of his novel in 60 minutes, or 1 hour

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Select the correct answer. Which equation matches the function shown in the graph?

Kisachek [45]

Answer:

B) $y=sin(x+\frac{\pi}{2})$

Step-by-step explanation:

Technically, since the function starts at its maximum, you could say the function is $y=cos(x)$ , but the answer choices all use sine instead. Therefore, we will have to use the cofunction identity $cos(x)=sin(x+\frac{\pi}{2})$ and we can see that the correct answer is B.