Find all the zeros of each equation. x5 – 3x4 - 15x3 + 45x2 - 16x + 48 = 0
A. 3,4,1
B. 4,-4,1,-1
C. 3,4,-4, 1,-1
D. 3,-4, -i

Solve 2x+y=3 x+y=5 in substitution method

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Which strategy is used by public health to reduce the incidence of food poisoning?