Explain how the graphs of the two functions below is a way of providing evidence of the double angle identity for sine. y = sin(2x)
y = 2(sinx)(cosx)

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?