Answer:
a. 17/31
the rest confuse me, good luck!
Step-by-step explanation:
With graphs on paper you can visually see intersecting lines(one solution), identical lines
(infinite solutions), or parallel lines(no solutions).
This method works best for lines that have integers for solutions. The task of determining rational or irrational solutions from graphs is difficult.
The substitution method usually must be used for equations with higher exponents. The deawback of this method is having to work with fractions.
The elimination method is often the method of choice.
This method however requires that you learn to recognize when the systems produce parallel lines or have equations that represent the same lines.
I believe the answer is A. 4-8+(-11)
When you see anything raised to the 1/2, it is just the square root. Similarly, anything raised to the 1/3 is the cubed root, and so on.
All the question is asking for is the square root of 64.<span />