Suppose that ∠ and ∠ are vertical angles, ∠ = 11x - 17 and ∠ = 9x +11.
Part A: Construct ∠ and ∠. [Hint: ∠ is an adjacent angle to ∠ and ∠ is an adjacent angle to ∠.]

Part B: Determine ∠ and ∠.

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

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

Officer brimberry wrote 32 tickets for traffic violations last week, but only 4 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.