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?

True or false look at the picture pls : /

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244