Question 1

A weekly pet insurance premium is given by a solution of the following equation:

4x2 - 11x - 3 = 0

Calculate the premium.

A-1.00

B-0.25

C0.75

D3.00

Answer : D

Question 2

Identifythe meaning of: | x | > 5

Ax is greater than 5.

Bx is greater than or equal to 5.

Cx is greater than 5 or x is less than -5.

Dx is greater than or equal to 5, or x is less than or equal to -5.

Answer : C

Question 3

Determine the coefficient of x3in the binomial expansion of (2 + x)5.

A10

B40

C64

D80

Answer : B

Question 4

Three light bulbs are chosen at random from 15 bulbs of which 5 are known to be defective.

Calculate the probability that exactly one of the three is defective.

AOption A

BOption B

COption C

DOption D

Answer : C

Question 5

Consider a function f which has three variables, x1, x2 and x3.

Identify which of the following gives a correct definition of a partial derivative of the function f.

AThe derivative of f with respect to either one of its variables or two of its variables, the other two variables or the third variable being treated as constant, respectively.

BThe derivative of f with respect to one of its variables only, the other two variables being treated as constant.

CThe derivative of f with respect to two of its variables, the third variable being treated as constant.

DThe derivative of f with respect to all three of its variables.