Math Test

The roots of a quadratic equation in x are given as -m and 2n.

Find the equation.

• x² + x(m - 2n) - 2mn

• x² - x(m - 2n) + 2mn

• x² - x(2n - m)+ 2mn

• x² + x(m - 2n) + 2mn

Simplify

• 2(1 + 3m²)

• 2(1 - 3m²)

• 2(1 - 3m)

• 2(1 + 3m)

Simplify

• 0

• 2 log₇⁡ 2

• 3 log_7⁡ 2

• 4 log₇ ⁡2

From the set A = {3√2, 2√3, √9, √7}, a number is selected at random.
Find the probability that it is a rational number.

•  $\frac{1}{5}$  

• $\frac{2}{5}$

• $\frac{3}{5}$

• $\frac{4}{5}$

The histogram shows the distribution of a group of students according to their ages.

What is the range of their ages?

• 14 years

• 20 years

• 30.5 years

• 31 years

The histogram shows the distribution of a group of students according to their ages

How many students are there in the group?

• 25 students

• 30 students

• 52 students

• 55 students

The histogram shows the distribution of a group of students according to their ages.

What is the modal frequency of the group?

• 6

• 10

• 20

• 16

The piechart shows the monthly contributions and expenditure pattern of an employee in 1999.

If the employee's gross monthly salary was N10,800, calculate the pension contribution of this employee.

• N540

• N1 080

• N2 700

• N3 600

The pie chart shows the monthly contributions and expenditure pattern of an employee in 1999.

If the employee's gross monthly salary was N10,800, calculate the income tax paid by the employee.

• N540

• N1 080

• N2 700

• N3 600

The pie chart shows the monthly contributions and expenditure pattern of an employee in 1999.

If the employee's gross monthly salary was N10,800, calculate the take-home pay of the employee after the pension contribution and income tax have been deducted.

• N3 240

• N7 560

• N7 200

• N10 800