math
What is the biggest number that will go into both 18 and 30? Is it 6? the greatest common factor for variables with exponents is the variable with the smallest power. for the u's the gcf would be u^2 for v^5 none because the second expression doesn't have a v. for the ...
Math
7x + 29 is correct in the numerator. the denominator will be x^2 + 3x - 10 Your mistake is that you added the denominators. You have to keep the denominator and add the numerators when working with fractions. Like 1/5 + 2/5 = 3/5 this is the same denominator that you have on t...
Math
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...
math
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.
Math 0098
-7x -7y =70000 7x + 9y =86000 2y = 156000 divide by 2 and you get 7800 for y so the other amount must be 2200.
Math 0098
Sorry.. the .08 is a typo. It should be .09 Which makes the equation 7x + 9y = 86000
Math 0098
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....
Math 0098
Do you have numbers for this problem?
Calculus
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?
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