Answer:
To find < E we use tan
tan E = opposite / adjacent
DF is the opposite
EF is the adjacent
DF = 11
EF = 11
tan E = 11/11
tan E = 1
E = 45
Hope this helps
Answer:
(1,6)
Step-by-step explanation:
If "(1, 9) is on the graph of f(x),"
then (1, [2/3][9]) is on the graph of the function y = (2/3)f(x). This works out to (1, 6).
Answer:
1 time unit
Step-by-step explanation:
There is a 1 in 3 chance that the time until the bulb burns out is zero, and a 2 in 3 chance that the time is the average between 0 and 3 (since it is uniformly distributed). Therefore, the expected value for the time until it burns is:

The expected value of the time until the lightbulb burns out is 1 time unit.