Suppose that the time (in hours) required to repair a machine is an exponentially distributed random variable with parameter λ=0.9. what is (a) the probability that a repair time exceeds 8 hours? 1-e^(1/0.9*8) (b) the conditional probability that a repair takes at least 13 hours, given that it takes more than 9 hours? note: you can earn partial credit on this problem. your score was recorded. you have attempted this problem 3 times. you received a score of 0% for this attempt. your overall recorded score is 0%. you have unlimited attempts remaining.

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.

Will mark brainliest, , and rate to only chrislaurencelleenzo is making a scale drawing of the rectangle below. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~imageenzo says that he can draw an enlarged rectangle that is 16 centimeters by 13 centimeters. which explains whether enzo is correct? enzo is correct because he used a factor of 2 to enlarge the rectangle.enzo is correct because he doubled one dimension and added the two lengths to get the other dimension.enzo is not correct because the enlarged rectangle should be 16 centimeters by 5 centimeters.enzo is not correct because he did not multiply the length and width by the same factor.