Solve the equation 6x^2 + 17x - 39 = 0
Using the quadratic equation with a = 6, b = 17 and c = -39, x is found to be 1.5 or -4.33
SE
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All answers ▸A group of 55 pupils were asked if they owned a phone or a tablet.11 people are known to own both18 said they only owned a tablet34 said they owned at least a phoneA student is picked a random, what is the probability that the student doesn’t have a phone
There are 30 yellow sweets and 10 black sweets in a bag. Two sweets are taken out at random without replacement. Work out the probability that the two sweets are the same colour.
Solve the simultaneous equation: 2x + y = 7 and 3x - y = 8
Work out the value of the following: