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Maths Puzzle
Numerical Ability
what is the exact value of sin 22.5 degrees using the sum, difference, half, or double angle formulas and the exact value chart in the solution.
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I need help calculating the area between the y-axis and y = x squared, from y = 4 and y = 9. I beleive my graph would show a parabola, however I am not sure. Would you please hel
Problem Solving Using Systems of Equations
8x+9y=1030 x=1030-9y/8
1x+1y=120 1(1030-9y/8)+y=120
-1y=-70 or y=70 HOW DID I COME UP WITH 70?