Question 1Find the slope of the curve y = 2x2 + 5x - 3 at (1, 4)A.4B.0C.7D.9Objective Show full explanation
Question 3By how much will the mean of 30, 5, 31, 55, 43 and 44 less than the medianA.0.75B.0.50C.0.33D.0.17Objective Show full explanation
Question 4The range of 4, 3, 11, 9, 6, 15, 19, 23, 27, 24, 21 and 16 isA.16B.21C.23D.24E.5Objective Show full explanation
Question 5The mean of the numbers 2, 6, 4, x and 7 is 5, find the standard deviationA.√{2}B.√{3}C.2D.3Objective Show full explanation
Question 6Find the remainder when 3x3 + 5x2 - 11x + 4 is divided by x + 3A.4B.1C.-1D.-4Objective Show full explanation
Question 7What are the integral values of x which satisfy the inequality 3 - 2x ≤ 5?A.-6B.-4C.-1D.-4Objective Show full explanation
Question 8Find the derivative of (2x + 3x)(1 - X) with respect to xA.6x - 1B.1 - 6xC.6D.-3E.5 - 10xObjective Show full explanation
Question 9Find the derivative of the function y = 2x2(2x - 1) at the point x = -1A.-6B.-4C.16D.18Objective Show full explanation
Question 10Find the mean deviation of 1, 2, 3 and 4A.1.0B.1.5C.2.0D.2.5Objective Show full explanation
Question 11Find the value of t if the standard deviation of 2t, 3t, 5t and 6t is √{2}A.1B.2C.3D.4E.√{0.8}Objective Show full explanation
Question 12In how many ways can 6 coloured chalks be arranged if 2 are of the same colour?A.60B.120C.240D.360Objective Show full explanation
Question 13A final examination requires that a student answer any 4 out of 6 questions. In how many ways can this be done?A.15B.20C.30D.45Objective Show full explanation
Question 14if the mean of five consecutive integers is 30, find the largest of the numbbersA.28B.30C.45D.40E.32Objective Show full explanation
Question 15A bag contains 5 black, 4 white and x red marbles. If the probability of picking a red marble is 2/5 Find the value of xA.8B.10C.4D.6Objective Show full explanation
Question 16For what value of s of n is n-1C3 = 4(nC3)?A.6B.5C.4D.3E. -1Objective Show full explanation
Question 17Find the roots of x3 - 2x2 - 5x - 2 leave a remainder 2 when it is divided by 2x + 11A.1, 2, -3B.-1, 2, 3C.-1, 2, 3D.1, -2, 3Objective Show full explanation
Question 18find the value of k if the expression kx3 + x2 -5x - 2 leaves a remainder 2 when it is divided by 2x + 1A.10B.0C.-10D.-8Objective Show full explanation
Question 19If y = x2 - x -12. Find the range of values of x for whih x ≥ 0A.x < -3 or x > -1B.x ≤ -3 or x ≥ 4C.-3 < c ≤ 4D.-3 ≤x ≤ 4Objective Show full explanation
Question 20How many terms of the series 3, -6, +12, -24, ..... are needed to make a total of 1-28A.12B.10C.9D.8E.-256Objective Show full explanation