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Find the solutions to the following equation x^2 - 5*x + 6 = 0

There are several ways one can go about answering this question, one of which is to 'complete the square' by trial and error. A different, potentially easier method is to substitute the coefficients into the...
FM
Answered by Frederick M. • Maths tutor
4243 Views

Probabilities: "A bag contains counters that are red, blue, green and yellow. There are 9 red, (3x) blue, (x-5) green and (2x) yellow. If the probability of picking a red at random is 9/100, work out the probability of picking a green."

If there is a total of 100 counters, 9 + (3x) + (x-5) + (2x) = 100. 3x + x + 2x = 100 + 5 - 9 6x = 96 x = 16 Probability of picking green = (16 - 5)/100 = 11/100
CD
Answered by Charukshi D. • Maths tutor
13388 Views

Expand completely: (3a-6)(a+3)

Final Answer: a 2 +3a -18 Using FOIL (First, outside, inside, last) we multiply the terms in the brackets together. First: 3a multiplied by a = 3a 2 Outside: 3a x 3 = 9a Inside: -6 x a= -6a Last: -6 x 3 = -1...
SS
Answered by Sam S. • Maths tutor
4756 Views

A line has equation y = 3x + 4, write down the gradient of the line.

gradient = 3
RM
Answered by Rifat M. • Maths tutor
11363 Views

How to convert a recurring decimal into fraction

Fristly we need to define recurring decimal as a rational number that does not terminate. Example 1, 0.444444444... Example 2, 0.123123123... A fraction is a number in which the numerator is divided by the d...
BL
Answered by Bernice L. • Maths tutor
26422 Views