Question

1. (a) Find the value of k for which the lines kr - 5y + 4 = 0 and 4x - 3y + 5 = 0 are perpendicular to each
other
(b) In an AP first term is 8, nth term is 33 and the sum to first n terms is 123. Find n and the commune
difference of the AP.
(c) Show that the tangents drawn from an external point to a circle are equal in length.
2. (a) Using quadratic formula, solve : 5 + 11x - 5x.
(b m) Point P (a, b) is reflected in x-axis to P' (4, -3). Write down the values of a and b.
(1) P" is the image of P when reflected in y-axis. Write down the co-ordinates of P".
(w) Name a single transformation that maps P' to P".
(c) Find the remainder when 2x + 7x? - x + 1 is divided by (x + 1)
3. (a) If the roots of the equation (b-C)x² + (c- a)x +(a - b) = 0 are equal, then prove that b =
2
(b) Two opposite sides AB and DC of a cyclic quadrilateral ABCD intersect in E, when produced.
Prove that AEAD and AECB are similar
(oA solid cylinder has a total surface area of 462 m. Its curved surface area is one third of its total
surface area. Find the volume of the cylinder.


slove this as fast as possible please ​

Answer 1

Answer:

slope of straight line =-a/b