Hits: 37
Hits: 37 Question A rectangular room has a width of x m. The length of the room is 4 m longer than its width. Given that the perimeter of the room is greater than 19.2 m, a. Show that Given also that the area of the room is less than 21 m2, b. […]
Hits: 42 Question Given the simultaneous equation; Where k is a non zerp constant. a. Show that Given that has equal roots, b. find the value of K. Solution a. We are given that; To write a single equation in terms of x and k, we find expression for y from first equation; We substitute this expression […]
Hits: 12 Question Find the set of values of x for which a. b. Solution a. We are given; b. We are required to solve the inequality; We solve the following equation to find critical values of ; Now we have two options; Hence the critical points on the curve for the given condition are & -3. […]
Hits: 15 Question a. Find the values of the constants a, b and c. b. On the axes on page 27, sketch the curve with equation y = 4×2 + 8x + 3, showing clearly the coordinates of any points where the curve crosses the coordinate axes. Solution a. We are given that; In order to find […]
Hits: 14 Question The equation (k + 3)x2 + 6x + k = 5, where k is a constant, has two distinct real solutions for x. a. Show that k satisfies k2 – 2k – 24 < 0 b. Hence, find the set of possible values of k. Solution a. We are given that; We are given that given […]