Answer:
y=10,-10
Step-by-step explanation:
you forgot to add the -10
Hope this helps
Answer:
Step-by-step explanation:
Use the definition of secans:
Now you have to find the cosine of angle 
Point (12,-9) lies in fourth quadrant, then 
Consider right triangle with legs 9 and 12, by the Pythagorean theorem,
Thus,
and
Answer:
it will be 2:50
Step-by-step explanation:
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A hole occurs when both numerator and denominator of a rational function have the same factor.
<u>Step-by-step explanation:</u>
While graphing rational function, it has to be converted into the lowest terms by factoring the numerator and denominator. If the numerator and denominator has the same factor, a hole is said to have occurred and to solve the rational function, you have to set the common factor to zero.
After you set it to zero and solve, you obtain the x value which can be then used to find out the value of y.
