Further Mathematics 2019 Waec Past Questions and Answers

Question 16 :

• WAEC 2019

The second and fourth terms of an exponential sequence (G.P) are \(\frac{2}{9}\) and \(\frac{8}{81}\) respectively. Find the sixth term of the sequence

A. \(\frac{81}{32}\)
B. \(\frac{9}{8}\)
C. \(\frac{1}{4}\)
D. \(\frac{32}{729}\)

Question 17 :

• WAEC 2019

Point X and Y are on the same horizontal base as the foot of a building such that X is 96m due east of the building and Y is due west. If the angle of elevation of the top of that building from X is 30\(^o\) and that of Y is 50\(^o\), calculate the distance of Y from the base of the building.

A. 30m
B. 32m
C. 42m
D. 50m

Question 18 :

• WAEC 2019

Find the coordinates of the point in the curve y = 3x\(^2\) - 2x - 5 where the tangent is parallel to the line y = - 5 = 8x

A. \(\begin{pmatrix} - \frac{5}{3} &, 0 \end {pmatrix}\)
B. \(\begin{pmatrix} 0, & - \frac{5}{3} \end {pmatrix}\)
C. \(\begin{pmatrix} 0, & \frac{5}{3} \end {pmatrix}\)
D. \(\begin{pmatrix} \frac{5}{3} &, 0 \end {pmatrix}\)

Question 19 :

• WAEC 2019

If the mean of 2, 5, (x + 1), (x + 2), 7 and 9 is 6, find the median.

A. 6.5
B. 6.0
C. 5.5
D. 5.0

Question 20 :

• WAEC 2019

Calculate the mean deviation of 5, 8, 2, 9 and 6

A. 5
B. 4
C. 3
D. 2