# Subject(s): Mathematics–Mathematics – Other

A ferris wheel has a diameter of 10 m and takes 24 sec to make one revolution. The lowest point on the wheel is 1 m above the ground. (8 marks)

a. Sketch a graph to show how a rider’s height above the ground varies with time as the ferris wheel makes a rotation. Assume the person starts the ride at the lowest point on the wheel.

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b. Write a trigonometric equation that describes the graph. (steps are required)

c. Check the accuracy of your equation by using t = 12 sec. Explain why this provides a check of the accuracy of the equation. What are two more values that would provide a good check?

q2

The president uses technology to produce the following random numbers.

Determine the numbers for faculty members who will be included in the sample.
The numbers for the faculty members are

q3

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14};
For P= {1, 2, 5, 8, 9, 12, 13, Q = (1, 6, 11}, and R = (3, 6, 10, 11},
Find
1) PUQ
2) Pn(QUR)=
3) (PnQ’) U(QnR’) =

q4

q5.

1. Compute the multiplicative inverse mod 216 of 5.

2. Compute φ(2223)

q6.

There are 49 dogs signed up for a dog show. There are 36 more small dogs than large dogs. How many small dogs have signed up to compete?

q7.

q10.

Your business requests a 3-month loan for \$500,000. What will be the interest paid at the end of the term if the business risk percentage is assessed at 2.2% and LIBOR is at 2.8%?

q12.

The mean of 100 bank customers’ waiting times for teller service is 5.8 minutes with a standard deviation of 1.5. What time range would represent about a 95% probability customer waiting time?

q13.
Assignment 7 (UNIT IV) / 5
Clearly label all cases (a, b and c). Show all your work. You can type your solutions