Waec Mathematics Past Questions and Answers

Question 796:

• WAEC 2002

The diagram is the graph of \(y = 6 + x - x^2\). The graph intercepts the x- axis at P and R and the y- axis at Q.
What is the value of y at Q?

A. \(6\frac{1}{3}\)
B. 6
C. 3
D. Zero

Question 797:

• WAEC 2002

The diagram is the graph of \(y = 6 + x - x^2\). The graph intercepts the x- axis at P and R and the y- axis at Q.
When \(y = 3\frac{1}{3}\), what is the positive value of x?

A. \( 2\frac{1}{2}\)
B. \( 2\frac{1}{5}\)
C. \( 1\frac{1}{5}\)
D. Zero

Question 798:

• WAEC 2002

The length, in cm, of the sides of a right angled triangle are x, (x+2) and (x+1) where x > 0. Find , in cm, the length of its hypotenuse

A. 4
B. 5
C. 13
D. 17

Question 799:

• WAEC 2002

If log 2 = 0.3010 and log 2\(^y\) = 1.8062, find; correct to the nearest whole number, the value of y.

A. 6
B. 5
C. 4
D. -5

Question 800:

• WAEC 2002

Points X, Y and Z are located in the same horizontal plane such that Y is 12 km north of X and Z is on a bearing of 270° from X. If |XZ| = 6km, calculate, correct to one decimal place, lYZl

A. 18km
B. 13.4km
C. 13km
D. 10.4km