Answer:
Your first instinct might be to go ahead and add the x terms together, BUT this would be a bad thing to do! You cannot combine the x2 and 2x, because the first term has an exponent (2) and the second one does not have an exponent; therefore, you cannot add them together!
Step-by-step explanation:
Answer: K-24
Step-by-step explanation: It's basically just subtracting by replacing the number with one of your answer choices or its an expression.
Answer:

Step-by-step explanation:
If the <em>angle of elevation</em> is congruent in both triangles, then both smaller legs are congruent.
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Answer:

Step-by-step explanation:
The key to this question is that the length of a side of a triangle is larger than the difference of the other 2 sides and is smaller than the sum of the other 2 sides. Hence the length of AC is larger than (or equal to, in case A, C, D do not form a triangle but are on the same line)
and is smaller than (or equal to)
.