1. Decide which theorem can be used to show the two triangles are congruent or if they are not congruent due to not enough information given, * 1 point I 1 I 1 1 I I I 1 1 1 1 1 H I 1 I - - - - - - - - - - 1 1 1 1 1 1 1 1​

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

Find csc x if sin x + cot x cos x =√3 a. 9 b. 3 c. √(3)/2 d. √(3)

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).