exam
Maths Puzzle
Numerical Ability
S(t) = -16t^2 + 150t + 5
Read Solution (Total 0)
exam Other Question
Add:
29+(-42)+510+(-397)+52(-792)
Help me please. I do not understand am i supposed to subtract all the ones in parenthisis then add the rest, then subtract the total parenthisis from the total of the ones not in parenthesis?
To solve systems of equations by the substitution method. My son needs help with these 2 problems:
(1) x = 3y - 1
x +2y = 9
(2) 2x - 3y = 12
x = 4y +1