Do you mean 5/(x-2) plus 2/(x+5) = 4/(x^2 + 3x -10) To do this you either need a common denominator or to clear denominators. I have to check the factors of the denomonators. (x^2 + 3x -10) factors to (x+5)(x-2) 5/(x-2) needs to be multiplied by (x+5)/(x+5) 2/(x+5) needs to be...
non permissable values
Nonpermissiable values. You only have to worry about the denominators. A denominator can never be equal to zero since division by zero is not defined. If a denominator is x + 2 , we don't want it to equal zero. So, x cannot = -2 sind that will cause the denominator to equa...
round 1 you start with x and 1/2 are eliminated (x/2) times 1/3 for what is left after round 2. (x/6)times 1/5 times 1/6 Do the math and then set x/? = 10 solve for x.
-7x -7y =70000 7x + 9y =86000 2y = 156000 divide by 2 and you get 7800 for y so the other amount must be 2200.
Sorry.. the .08 is a typo. It should be .09 Which makes the equation 7x + 9y = 86000
x = amount in the first account y = amount in the second account. total invested: x + y = 10,000 since Interest = Principles times rate times time. .07x + .08y = 860 Now, you work with those two equations. I would multiply the bottom equation by 100 to get rid of the decimals....
Do you have numbers for this problem?
The derivative of a product. The rule is: the first times the derivative of the second PLUS the second times the derivative of the first. simplify your answer. The derivative of the first: 4x-2 The derivative of the second -3x^-4 -8x^-5 Can you finish with these hints?
Use the slope formula. m = (x2-x1)/(y2-y1) 2 = (2 -1)/(y-3) Multiply (y-3) times each side of the equation. Simplify and solve for y.
n = ist number n+1 = second number the sum: n + n + 1 or 2n + 1 reciprocal we would want 1/(2n+1) and that should equal 11/30 Set the two fractions equal to each other Cross multiply and then solve for n. then find n+1