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assume that you are aboard a submarine. submerged in the pacific ocean. at time t=0, you make contact with an enemy destroyer. Immediately you start "porpoising". at time t=4 minutes, you are at your deepest, y=-1000meters. At time t=9 minutes,you next reach your shallowest,y=-200meters. assume that y varies sinusoidally with t for t>0.a. sketch the graph of y versus tb. write the particular equation expressing y in terms of t.c. solve your equation for t in terms of y.d. your submarine is "safe" when it is below y=-300meters. At time t=0, was your submarine safe? explian how you know. for t<15 minutes, give the times when your submarine was safe.
If you plan to drive the new car for 120,000 miles over the next 10 years, which car is the better buy? Use mathematical reasoning to justify your responses.
A poll of 69 students found that 24% were in favor of raising tution to build a new math building. The standard deviation of this poll is 4%. What would be the standard deviation if the sample size were increased from 69 to 205?
Suppose that you are dealt a hand of 9 cards from a standard deck of 52 playing cards. What is the probability that you are dealt exactly 3 kings? What is the probability that you are dealt 9 cards of the same suit?
Kate and John buy a block of land for $140,000 by paying $10,000 deposit and then taking out a loan for the remainder. The loan will be repaid with quarterly instalments over 15 years with interest at j4 = 7.7%.
That is, the next 10 feet will cost $125, the next 10 feet will cost $150, etc. How much will it cost to build a 90- foot tower?
the dimensions of a rectangle are such that its length is 3 in more than its width. if the length were doubled and if the width were increased by 1 in, the area would be increased by 104 in what are the length and width of the rectangle?
Calculate Clayton's profit margin and debt ratio.
if a rectangular prism has a side of 69 square inches and one with 252 square inches and another side with 168 square inches then what is the volume of the box?
show that a rational number r is a cube if and only if every exponent of the prime factorization of r is divisible by 3.
what is the probability of getting a sample proportion this small or smaller? Do you think she actually has 55% of the vote? Why or why not?
For this assignment you will be required to do some work that will not be included in the discussion. First, you need to graph your functions so you can clearly describe the graphs in your discussion. Your graph itself is not required in your post, a..
Two ships leave port at the same time. Ship X is heading due north and Ship Y is heading due east. Seven hours later they are 350 miles apart. If the Ship X had traveled 280 miles from the port, how many miles had Ship Y traveled?
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