WAEC Mathematics Past Questions & Answers - Page 244

1,216.

The values of x when y = -1 are approximately

A.

-10 and 2.0

B.

-1.3 and 2.3

C.

-0.6 and 2.6

D.

-0.6 and 1.6

E.

1.6 and 1.6

Correct answer is D

No explanation has been provided for this answer.

1,217.

The graph of the quadratic expression

A.

\(y=x^2 + x - 2\)

B.

\(y=x^2 - x + 2\)

C.

\(y=x^2 - x - 2\)

D.

\(y=x + x + 2\)

E.

\(y=x^2 - 2 x - 2\)

Correct answer is C

No explanation has been provided for this answer.

1,218.

In the diagram above, the area of triangle ABC is 35cm2, find the value of y

A.

5cm

B.

10cm

C.

17.5cm

D.

28cm

E.

70cm

Correct answer is B

No explanation has been provided for this answer.

1,219.

A die with faces numbered 1 to 6 is rolled once. What is the probability of obtaining 4?

A.

\(\frac{1}{36}\)

B.

\(\frac{1}{6}\)

C.

\(\frac{1}{3}\)

D.

\(\frac{1}{2}\)

E.

\(\frac{2}{3}\)

Correct answer is B

When the die is rolled, occasion of getting 4 

P(obtaining a 4) = \(\frac{1}{6}\)

= \(\frac{1}{6}\)