Which value of y makes the equation true?
-2y-9=-11
OA -10
OB. -1
Ос. 1
OD. 10

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.

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).

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?