Question 1034755: 1. An equation, shown below, represents the rates of three quantities.
2/z = 4/x + 3/y
If x = 4/5, y = 6/5, find the value of z.
a. z=5
b. z=15/4
c. z=15/2
d. z=4/15
2. Solve the rational polynomial shown below:
(5/x-4)+(6/4-x)= (4/x^2-16)
a. x=-12
b. x=-8
c. x=2
d. x=8
3. A radical equation is shown below.
6 = (sqrt) x^2 -2x + 12
Which choice represents the solutions to this equation?
a. the only valid solution is x=2
b. the only valid solution is x=4
c. there are two extraneous solutions: x=-2 and x=2
d. there are two valid solutions: x=-4 and x=6
Question 4. A radical equation is shown below.
8(sqrt)x-x = 12
Which statement is true?
a. the equation has one valid solution
b. the equation has two valid solutions
c. the equation has two extraneous solutions
d. the equation cannot be solved
Answer by ikleyn(52784)   (Show Source):
You can put this solution on YOUR website! .
It is not a request for help.
For the individual help, I mean.
It is a request to work for free on some industrialist.
And even without a formal invitation.
Not for me, sorry.
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