I don't think quadratic inequations are even part of yr 10.Why wouldn't this style of questions come up?
I don't think quadratic inequations are even part of yr 10.Why wouldn't this style of questions come up?
I don't think quadratic inequations are even part of yr 10.
They might be 5.3, not sure though.I don't think quadratic inequations are even part of yr 10.
He's talking about the question I gave about inequalities. There's definately a good chance a similar question to the one you posted will come up.Mate, I got this straight out of BOS online multiple choice section..
What are relative frequencies? And how do you work them out? thanks!He's talking about the question I gave about inequalities. There's definately a good chance a similar question to the one you posted will come up.
5 hours. Nobody said the clock was correct when the electricity was turned off...+explanation..
lol
Relative Frequency = Frequency of ONE score (or as specificed by the question)/ Total Frequency of all scoresWhat are relative frequencies? And how do you work them out? thanks!
Ah thankyou! Yeah.. never had to do that sort of question before.Just plug in a number between -4 and -1, if it suits the equation, then it is -4 < x < -1
If it doesn't suit the equation it has to be x < -4 and x > -1
So say x=-2, then -2^2 - 10 + 4 > 0
Which says 4-10+4 > 0, then -2 > 0
So it's false and x must be less than -4 but also can be greater than -1.
let a = yIf a and b are consecutive even integers that multiply to give 224. Write an equation to solve the values of a and b
lol no chance, at most you'd be asked to sketch y=x or something. Even then I doubt they'd ask you to sketch a graph of some sort.Will there be any sketching of lines, parabolas, hyperbolas, cubics or circles on Tuesday ?
By inspection, 15^2=225If a and b are consecutive even integers that multiply to give 224. Write an equation to solve the values of a and b
(a+b)/2 = square root of 225So what was the equation you would write?
Everything is right except the last step. "because it has to be a squared number as a result", re-read the question and you should realise why it's wrong.Abc=(ab)^2
(ab)(ab)=abc
:. C=ab
:.C=9 because it has to be a squared number as the result.