46. The height of the water, H, in foer. at a boar dock rhautaties 6 A. M. is given by
H = 10 + 4 sin
4 sin
2. Find the height of the water at the dock at 6 A 3. QAM
noon, 6 Am., midnight, and 3 A. M.
b. When is low tide and when is high tide?
c. What is the period of this function and what does this
mean about the tidest

Which matrix multiplication is possible?

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.