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In urgent need of help with these Algebra 1 questions. Please help as soon as possible?
Ok, so I need help with these questions. Please help me. The sooner I get the answers the better. Thanks! Here are the questions:
2.) Solve the proportion: x/9 = 4/x
10.) The variables x and y vary directly. Use
the given values to write an equation that relates x and y.
x = 5, y = 25
15.) Simplify the expression if possible 2x^2 - 4x / x - 2
17.) For what values of the variable x is the rational
expression undefined: 8/(x + 2)
18.) Simplify the expression 5x/2 * 1/x
19.) Simplify the expression 12x/5 / 6x/7
20.) Simplify the expression: 14/(3x) + (x+5)/(3x)
21.) Simplify the expression: 4/(x+2) - 3/(x+2)
22.) Simplify the expression: 3/x + 2/x^2
24.) Divide 15x^2 + 10x - 5 by 5x
25.) Divide x^2 + 3x - 18 by x - 3
I need help as soon as possible. It's pretty urgent, so please help me real soon. Thanks a bunch!
1 Answer
- Anonymous10 years agoFavorite Answer
2) Cross multiply to get x^2 = 4/9. Take square root of each side to get x = square root of 4/9. Take the root inside the fration to get 2/3.
10) Y = X^2 since 25 = 5^2
18) This is undefined when the denominator is 0. So solve x+2 = 0. The only value that works for this is -6
Its 3;30 am, so Im done for the nigh. Hope it helps, send me a message and I'll try to help more.
Source(s): Too many math classes