Answer is A
X-3/x^2-4 has two excluded values 2, -2
There are two ways to work this out: normal variables or using "imaginary" numbers.
Normal variables:
Imaginary numbers:
Using the result from earlier:
Now since
, then the expression becomes:
Answer:
the answer is 7.2 10³
Step-by-step explanation:
7.2 10³
Answer:
2^8 2x2x2x2x2x2x2x2=256
Step-by-step explanation:
Answer:
Y = -1/2x+4
Step-by-step explanation:
The Y intercept is 4, so that's where the +4 comes in.
The slope is rise over run, so you count how many up you go from a whole number, in this case one, and that goes on top. Then you count how many it goes over, in this case two, and that goes on the bottom. The negative comes from which way the slope is going; down or up.