Answer: +9, -9
Step-by-step explanation: The rational expression in this case is undefined if the the denominator is equal to zero, which means that the x cannot be whatever makes the denominator zero, so:
x² - 81 = 0 ⇒ x² = 81 ⇒ x = +/- √81 ⇒ x = +/- 9
Note that we are using the equal sign just because this particular problem askes for a solutions that is undefined.
Answer:
Blank 1 (-2) Blank 2 (4)
Step-by-step explanation:
Answer:
I have a lead pencil and only 2 pieces of lead left. One is 5/6 inches long and the other is 1/3 inches long. How many times longer is the 5/6 then the 1/3?
Step-by-step explanation:
Graphing it out yields the radius of the cylinder is 5 inches.
