Top answers

5y = 45

5y = 45y = 45/5y = 9
GB
Answered by Georgie B. • Maths tutor
5491 Views

Factorise x^2 - 6x + 9 = 0

x 2 - 6x + 9The method for factorising quadratics is to find 2 numbers that add to make the 'x' term (-6x in this case), and multiply together to make the final term (+9 in this case). Factors of +9 are: 1x9...
KB
Answered by Kate B. • Maths tutor
9989 Views

What is 64^1/2 equal to?

A number to the power of 1/2 is the same as square rooting ( √) the number, therefore 64 1/2 is equal to √64. Remember that it can be the positive or the negative square roots, so it could be 8 2 or -8 2 .
KB
Answered by Kate B. • Maths tutor
29435 Views

How would you solve the simultaneous equations y=x+1 and y=4x-2

You could solve this equation by using substitution, since both equations are in a' y = ' form. You can substitute the first equation into the first, as they both equal y, they both equal each other : x+1=4x...
PK
Answered by Priya K. • Maths tutor
4800 Views

L1: y=3x-2 & L2: 3y-9x+5=0, show these two lines are parallel

L1: y=3x-2L2: 3y-9x+5=0 3y=9x-5 y=3x-5/3standard form of a linear line, y=mx+c where m is the gradient. Gradient in both equations is 3 therefore they are parallel
FM
Answered by Faaruq M. • Maths tutor
3970 Views