Which of the following equations could be solved to determine the length of ? A) QR2 = 202 + 272 – 2(20)(27) ⋅ cos 99°

B) cos 99/QR = cos/20

C) QR2 = 202 + 272 – 2(20)(27)

D) QR2 = 202 + 272 – cos 99°

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?