A straight line y = mx meets the curve y = x2 - 12x + 40 ...
A straight line y = mx meets the curve y = x2 - 12x + 40 in two distinct points. If one of them is (5, 5) find the other
(5, 6)
(8, 8)
(8, 5)
(7,7)
(7, 5)
Correct answer is E
When y = 5, y = x2 - 12x + 40, becomes
x2 - 12x + 40 = 5
x2 - 12x + 40 - 5 = 0
x2 + 12x + 35 = 0
x2 - 7x - 5x + 35 = 0
x(x - 7) - 5(x - 7) = 0
= (x - 5)(x - 7)
x = 5 or 7
A trader bought 100 oranges at 5 for N40.00 and 20 for N120.00. Find the profit or loss percent ...
Evaluate log106 + log1045 - log1027 without using logarithm tables...
If m * n = n - (m+2) for any real number m and n find the value of 3*(-5)? ...
In\( ∆ PQR, P\hat{Q}P = 84^°, |Q\hat{P}R |= 43^°\) and |PQ| = 5cm. Find /QR/ in cm, correct to 1...
If /XY/ = 50m, how far cast of X is Y? ...
Factorize m3 - 2m2 - m + 2 ...
In the diagram PQ is a diameter of circle PMQN center O, if ∠PQM = 63o, find ∠MNQ...
A ladder 9m long leans against a vertical wall, making an angle of 64° with the horizontal ...