Which of the following statements must be true to prove that lines p and q are parallel? Question 13 options:

A)

∠1 ≅ ∠4

B)

∠2 ≅ ∠7

C)

∠1 ≅ ∠7

D)

∠4 ≅ ∠6

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236