Matric Mathematics

Question 1

In the arithmetic sequence 7; 11; 15; 19; ... what is the value of the 20th term?

Accepted Answer

83

Answer

87

Answer

79

Answer

91

Question 2

If f(x) = 2x^2 - 3x + 1, what is f(-2)?

Accepted Answer

15

Answer

11

Answer

3

Answer

-1

Question 3

Solve for x: log_2(x) = 5.

Accepted Answer

32

Answer

25

Answer

10

Answer

16

Question 4

A car depreciates on a reducing-balance basis at 15% per year. If it is worth R200 000 now, what is it worth after 1 year?

Accepted Answer

R170 000

Answer

R185 000

Answer

R230 000

Answer

R150 000

Question 5

What is the gradient of the line joining the points A(2; 3) and B(6; 11)?

Accepted Answer

2

Answer

4

Answer

1/2

Answer

8

Question 6

The probability of an event is 0.35. What is the probability that the event does NOT occur?

Accepted Answer

0.65

Answer

0.35

Answer

0.50

Answer

0.70

Question 7

Simplify: (x^3 × x^4) / x^2.

Accepted Answer

x^5

Answer

x^9

Answer

x^24

Answer

x^6

Question 8

What are the roots of the equation x^2 - 5x + 6 = 0?

Accepted Answer

x = 2 and x = 3

Answer

x = 1 and x = 6

Answer

x = -2 and x = -3

Answer

x = 5 and x = 6