Top answers

6y+2x^2=6 x=(y+1)^0.5 solve the simultaneous equations

x^2=y+1 therefore 6y+2y+2=6 therefore 8y=4 y=0.5 sub in to either equation x=(3/2)^0.5
TF
Answered by Thomas F. • Maths tutor
3373 Views

what is standard form?

standard form is a way of writing very large numbers or very small numbers in a condensed form. E.g. 1,600,000,000 can be written as 1.6x10^9
RA
Answered by Ruqia A. • Maths tutor
3823 Views

Do I need to write down all of my working out?

Yes, in order to maximise the amount of marks you obtain you must write down all of your working as often the answer is only worth 1 mark whereas the working out makes up the rest of the marks. Always show y...
CC
Answered by Charlie C. • Maths tutor
6683 Views

Find x for: x^2 + 5x = 5

x 2 + 5x = 5 Make equal to 0. x 2 +5x - 5 = 0 Recognise that you need to use the quadratic equation. (-b ± sqrt(b 2 -4ac))/2 sub in. (-5 ± sqrt(5 2 -4 1 -5))/2 (-5 ± sqrt(45))/2 x = (-5 + 6.7)/2, x = (-5 - 6...
LC
Answered by Lewis C. • Maths tutor
4210 Views

Work out area of shaded region in terms of pi. (https://prnt.sc/hqfbsl) [Question link]

Area of square : Base x Height. Area of Circle : π x (Radius) 2 . Looking at the diagram we are given the dimensions of the base or height of the cube (as all sides are equal in a square) and the diameter of...
MA
Answered by Mohammed A. • Maths tutor
11778 Views