Answer: either of two angles whose sum is 180°.
Step-by-step explanation:
Answer:
1 7/8
Step-by-step explanation:
The answer is 1 7/8.
Answer:
The element you add is 
Step-by-step explanation:
The element you add is
Remember that
So, in order to complete the square you add 
But when you multiply times 
you get
9514 1404 393
Answer:
x ≠ 3
Step-by-step explanation:
In any case, the domain is restricted to values of the variable for which the function is defined. The value 1/0 is not defined, so the variable cannot allow the denominator to be zero. The denominator x-3 will be zero for x=3, so that value of the variable cannot be in the domain.
The domain is all real numbers except x=3.
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<em>Additional comments</em>
It is useful to become familiar with the domains of different functions. As we saw above, the reciprocal of 0 is undefined. The square root of a negative number is undefined. The log of a non-positive number is undefined. Trig functions are defined everywhere, but their inverse functions are not. Polynomial functions are defined everywhere, but ratios of polynomials have the same restriction on denominators that we see above.
