Applications of Trig

Question 1

Use the given function to determine the height after 15 seconds.

Accepted Answer

43.2

Question 2

What is the next positive value of time not shown that the height will reach 23 feet?

Accepted Answer

13 seconds

Question 3

What's the amplitude if max # in population is 500,000 and low, 5 years later, is 175,000?

Accepted Answer

162, 500 people

Question 4

2hrs after timing begins, temp is at low of 50. 3hrs later at high of 72. What's NOT true?

Accepted Answer

period is 5

Question 5

Equation represents a paddle wheel. What is the second time the paddle is going into the water?

Accepted Answer

17.9

Question 6

Paddle wheel has 62in diam & makes a revolution in 8 sec, high of 54 inches. What is NOT true?

Accepted Answer

B = 8

Question 7

What is the equation of the depth of water in terms of time as the tide goes in and out?

Accepted Answer

d=1.3+.2cos∏/6(t-2)

Question 8

What is the y-value when timing begins?

Accepted Answer

-18.14

Question 9

Find the period from the given equation.

Accepted Answer

40

Question 10

At how many years does the fox population reach 700 for the 3rd time?

Accepted Answer

4.2 years

Question 11

Tide is in (4meters deep) at 7am and out (1meter deep) at 9pm the same day. What is true?

Accepted Answer

VS is up 2.5 meters

Question 12

A pebble is caught in treads of a tire as shown. At what height will it be after 8.5 seconds?

Accepted Answer

35cm

Question 13

If diameter of the wheel were 30 ft & the low stayed at 4ft, what would be the new equation?

Accepted Answer

h=19+15cos∏/6(t-4)

Question 14

Where will Tarzan be after 9.5 seconds?

Accepted Answer

3 feet from the river bank, over land

Question 15

At how many seconds will the riders of the ferris wheel be at 24 feet for the 4th time?

Accepted Answer

19.5

Questions 15