Answer: If a solution results in zero when subsitituted into the denominator of the equation, the solution is extraneous.
This is because you obtained the solution from a simplified version of the original equation, but you have to check if the solution obtained is a real solution of the original equation
In the case that when you substitute the solution in the original version the denominator becomes zero, this solution must be rejected, because the division by zero is not defined.
Answer:
1.41*10^-4
Step-by-step explanation:
Just put it in a calculator.
Answer:
The answer for this question is B and C
Answer:
Step-by-step explanation:
This is right triangle trig. The side opposite the x is 8, and the side adjacent to the x is 5. The tangent ratio uses those sides. We need to find what angle has a tangent of 8/5. To do this, make sure your calculator is in degree mode. Then hit "2nd" then tan and you will see tan with a little -1 and a parenthesis. Enter 8/5 and hit "enter" and you will get an angle measure of 57.9946. Rounded to the nearest degree this is 58 degrees. That's your answer!
