exam
Maths Puzzle
Numerical Ability
Solve each system by the substitution method. Determine whether the equations are independent, dependent, or inconsistent.
Problem #26
y = x + 4
3y - 5x = 6
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exam Other Question
cos 225 as function of a positve acute angle less than 45.
The reference angel of cos 225 is -cos 45 but that is not less than 45 nor is it positve.
Please help....thanks!
Solve: X is greater than or equal to 10 or X is less than or equal to 10.
Is this the answer? (-infinity,10) union (10, infinity)....Please explain, I think I understand a little, but not quite sure.