Item 11 Let ∠1, ∠2, ∠3, and ∠4 have the following relationships.

∠1 and ∠2 are vertical angles.

∠3 and ∠4 are right vertical angles.

∠3 is adjacent to both ∠1 and ∠2.

What is the sum of the measure of ∠4 and the measure of ∠1 minus the measure of ∠2?

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

An equation where variables are used to represent known values—function notation true or false

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?