3 years ago

There are 15 postcardsin 3 equal stacks.How many postcards are in each stack

Mathematics

1 answer:

jeyben [28]3 years ago

6 0

15 postcards / 3 stacks = 5 postcards per stack <==

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Furkat [3]

Can you retype whatever you’re asking in this please?

7 0

3 years ago

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.