Write a number sentence to name the difference between point a and point b

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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?