An artist joined three square regions at their vertices to create the figure shown in the diagram.
Region Y
Region X
Region 2
The artist will use small congruent square tiles to cover each region without any gaps or
overlaps. Based on the information, which statement is true?
A The number of tiles needed to cover Region X is the same as the number of tiles needed
to cover both Region Y and Region Z.
B The number of tiles needed to cover Region Y is the same as the number of tiles needed to
cover both Region X and Region Z.
C The number of tiles needed to cover Region Z is the same as the number of tiles needed
to cover both Region X and Region Y.
D None of these
Oh

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?