Cargando....
|
Mantén pulsado para arrastrar. |
|||
|
Haz clic aquí para cerrar |
|||
Pregunta 1 Informe
If log 3 = 0.4771 and log 2 = 0.3010, what is the value of log 12?
Detalles de la respuesta
Pregunta 2 Informe
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?
Detalles de la respuesta
Pregunta 3 Informe
If A(I,2,3,...,10) ; B = (-5,-4,.....,-1) ; C = (-1, 0, 1, 2,....5) List all the elements in (B ∪ C) ∩ A
Detalles de la respuesta
Pregunta 4 Informe
Two fair dice are tossed together once. What is the probability of getting a total of at least 9 from the outcome?
Detalles de la respuesta
Pregunta 5 Informe
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.
Detalles de la respuesta
Pregunta 6 Informe
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)
Detalles de la respuesta
Pregunta 7 Informe
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?
Detalles de la respuesta
Pregunta 8 Informe
What is the positive difference between the squares of 2.5 and 2.1 to 1 significant figures?
Detalles de la respuesta
Pregunta 10 Informe
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?
Detalles de la respuesta
Pregunta 12 Informe
Find the Iength of a diagonal of a square whose area is 288cm2.
Detalles de la respuesta
Pregunta 13 Informe
The diagonals of a rhombus are 6cm and 8cm. Find the area of the rhombus.
Detalles de la respuesta
Pregunta 15 Informe
In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.
Detalles de la respuesta
Pregunta 16 Informe
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.
Detalles de la respuesta
Pregunta 17 Informe
For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined
Detalles de la respuesta
Pregunta 18 Informe
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.
Detalles de la respuesta
Pregunta 19 Informe
Solve for x in the quadratic equation. 2x2 + 12x + 10 = 0
Detalles de la respuesta
Pregunta 20 Informe
Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.
Detalles de la respuesta
Pregunta 22 Informe
If 7 is subtracted from twice a certain number x, the result is at most 5. What is the range of the number?
Detalles de la respuesta
Pregunta 23 Informe
If (x - a) is a factor of bx - ax + x2 - ab, what is the other factor?
Detalles de la respuesta
Pregunta 25 Informe
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
Detalles de la respuesta
Pregunta 27 Informe
If x + \(\frac{1}{x}\) = 8, find x2 + \(\frac{1}{x^2}\)
Detalles de la respuesta
Pregunta 28 Informe
Find the standard deviation of the numbers 6, 9, 10, 8 and 7
Detalles de la respuesta
Pregunta 30 Informe
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?
Detalles de la respuesta
Pregunta 31 Informe
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
Detalles de la respuesta
Pregunta 32 Informe
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?
Detalles de la respuesta
Pregunta 33 Informe
What is the Value of 11101\(_{two}\)+ 10011\(_{two}\) - 10001\(_{two}\)?
Detalles de la respuesta
Pregunta 35 Informe
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.
Detalles de la respuesta
¿Te gustaría proceder con esta acción?