Loading....

Press & Hold to Drag Around |
|||

Click Here to Close |

**Question 1**
**Report**

If x + \(\frac{1}{x}\) = 8, find x^{2} + \(\frac{1}{x^2}\)

**Question 2**
**Report**

Two fair dice are tossed together once. What is the probability of getting a total of at least 9 from the outcome?

**Question 3**
**Report**

A bag contains 4 blue and 8 red identical balls. If two balls are picked at random with replacement, what is the probability of picking two balls of different colours?

**Question 4**
**Report**

If log 3 = 0.4771 and log 2 = 0.3010, what is the value of log 12?

**Question 5**
**Report**

Solve for x in the quadratic equation. 2x^{2} + 12x + 10 = 0

**Question 6**
**Report**

Mohammed is 8 years older than Joy now. In five years’ time he will be twice as old as Joy. How old is Joy now?

**Question 7**
**Report**

Calculate without using tables Tan 45° + Cos 60°

**Question 8**
**Report**

If A(I,2,3,...,10) ; B = (-5,-4,.....,-1) ; C = (-1, 0, 1, 2,....5) List all the elements in (B ∪ C) ∩ A

**Question 9**
**Report**

3 - 7, 8 - 12, 13 - 17, 18 - 22. Which of the following is/are true?

I. The class Interval is 4

II. The class boundaries are 2.5, 7.5, 12.5, 18.5, 22.5

III. The mid-marks are 5, 10, 15, and 20

**Question 10**
**Report**

A chord 20cm long subtends an angle of 60° at the circumference of a circle, what is the diameter of the circle the nearest cm?

**Question 11**
**Report**

Find the Iength of a diagonal of a square whose area is 288cm^{2}.

**Question 12**
**Report**

Evaluate 0.0025 × 2.5 × 102 to 2 significant figures.

**Question 13**
**Report**

For what value(s) of x is the expression (x^{2} + 15x + 50) ÷ (x - 5) not defined

**Question 14**
**Report**

In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.

**Question 16**
**Report**

A is at 50°N and B is at 10°N, If A and B are on the same longitude, find the distance AS. Correct your answer to Four significant figures. (Earth radius = 6400km)

**Question 17**
**Report**

If (x - a) is a factor of bx - ax + x^{2} - ab, what is the other factor?

**Question 18**
**Report**

What is the Value of 11101\(_{two}\)+ 10011\(_{two}\) - 10001\(_{two}\)?

**Question 19**
**Report**

Find the value of 2a - b if a + b = 8 and 4a - b = 22

**Question 20**
**Report**

T varies directly as D and inversely as A. Given that T = 6, D = 3, and A = 2, find A when T = 3 and D = 6.

**Question 22**
**Report**

Find the standard deviation of the numbers 6, 9, 10, 8 and 7

**Question 23**
**Report**

Simplify (6 - x - x2) ÷ (x2 - 4)

**Question 24**
**Report**

Evaluate log 18 + log^{6} - log16\(^{\frac{1}{2}}\)

**Question 25**
**Report**

Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.

**Question 26**
**Report**

What is the positive difference between the squares of 2.5 and 2.1 to 1 significant figures?

**Question 27**
**Report**

A surveyor measured the length of a obtained 42.55 metres. If his measurement was more than the actual length and the percentage error of his measurement was 8%, calculate the actual length of the land

**Question 29**
**Report**

A car dealer sells a car and makes a profit of 15%. If the car costs N320,000.00, how much did he sell the car?

**Question 30**
**Report**

If 7 is subtracted from twice a certain number x, the result is at most 5. What is the range of the number?

**Question 31**
**Report**

A ship sails 6km from a port on a bearing 070° and then 8km on a bearing of 040°. Find the distance from the port.

**Question 32**
**Report**

If 2x : ( x + 1) = 3 : 2, what is the value of x?

**Question 33**
**Report**

A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40° and 50° respectively. Find the length of the flagpole.

**Question 34**
**Report**

The parallel sides of a trapezium are 13cm and 7cm. If the area of the trapezium is 50cm2, find the perpendicular distance between the parallel sides.

**Question 35**
**Report**

If y^{2}+ 14y + k is a perfect square, then k =

**Question 36**
**Report**

If a = {x : 1 < x < 9} ; b = {x : 0 < x < 9} ; C = {x : 2 x < 9} and a, b, c U, what are the elements in U?

Would you like to proceed with this action?