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Maths
GCSE

root3 (root6 + root12) can be written as Aroot2 + B

root3 (root6 + root12) (root3 * root6 ) + (root3 +root12) = root18 + root36= (root9 + root2) + 6= 3root2 +6a= 3 b = 6

Answered by Dorcus M. Maths tutor
2799 Views

v^2 = u^2 + 2as u = 12 a = –3 s = 18 (a) Work out a value of v. (b) Make s the subject of v^2 = u^2 + 2as

v^2 = 12^2+2(-3)(18) = 36. Therefore by square rooting v = 6.To make s the subject first minus u^2 from both sides to have v^2 -u^2 = 2as then divide 2a from both sides to have (v^2-u^2)/2a = s

Answered by Hershey Nicolle P. Maths tutor
9104 Views

A bottle contains 300ml of medicine, the dose for a child can be given by (m*a)/150 where m is the child's age in months and a is the adult dosage of 40ml. If you need 2 doses a day, how long will the medicine last until it's empty for a 2y/o child?

1) Work out the dosage required by the child per day 2 years old in months is 122 = 24. (12 is the number of months in a year and 2 is the child's age.)2440/150 = 6.4 ml (Using t...

Answered by Hershey Nicolle P. Maths tutor
3418 Views

Work out 64^1/2

8

Answered by Matilda J. Maths tutor
2465 Views

how should i revise maths, since there aren't many notes and its mainly applied?

The best way to revise is by doing practice questions, you can’t just read about the theory, you need to do as much practice as possible. This is why practicing past papers is the number one tip for revis...

Answered by pavithra n. Maths tutor
2291 Views

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