△PQR is similar to △XYZ. If PQ = n + 4, QR = n − 4, and XY = n2 − 16, what is the value of YZ, in terms of n? The value of YZ in terms of n is

Which shows the pre image of triangle xyz

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of