Let S represent the number of hours the submarine can travel on the water's surface and U represent the number
of hours it can travel underwater in order to reach Choo
Kheng's destination,
36S + 640 > 288
2
The submarine travels for 2 hours on the water's
23
surface. What is the least number of hours the submarine
must travel underwater in order for Choo Kheng to reach
her destination?

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position