Question 1Find the average of the first four prime numbers greater than 10A.20B.19C.17D.15Objective Show full explanation
Question 2Given that $$P \alpha \frac1{\sqrt{r}}$$ and p = 3 when r = 1, find the value of r when $$P = \frac32$$A.48B.64C.72D.324Objective Show full explanation
Question 4Which of the following equations corresponds to the data in the table?$$\begin{matrix}x& y\\-20& -\frac18\\-10& -\frac13\\ 0& \frac12\\ 5& \frac29\\ 20& \frac12 \end{matrix} $$A.y = 1/(x + 2)B.y = 2/(x + 4)y = (x + 1)/(x + 2)C.y = 2/(x - 2)Objective Show full explanation
Question 5The quadratic equation whose roots are at x = 3 and x = 5 is given by.A.(x – 3)(x – 5) = 1B.(x + 3)(x + 5) – 9 = (x + 3)(x + 5)C.(x + 3)(x + 5) = 0D.x2 – 8x = -15Objective Show full explanation
Question 6There are 15 balls in a box: 8 balls are green, 4 are blue and 3 are white. Then 1 green and 1 blue balls are taken from the box and put away. What is the probability that a blue ball is selected at random from the box? A.3/13B.4/15C.5/3D.4/13Objective Show full explanation
Question 7If $$\frac{-3}{(a-3)} = \frac{3}{(a+2)}$$, then a = ?A.-4B.-2C.1/2D.2Objective Show full explanation
Question 9If the hypotenuse of a right triangle is 10inches long and one of its legs is 5 inches long, how long is the other leg?A.5B.5√3C.5√5D.75Objective Show full explanation
Question 10If 8y = 3x – 11, then x =A.(88/3)yB.(8/3)y - 11C.(8/3)yD.(8y + 11)/3Objective Show full explanation