To find place value you go digit by digit. There are ones place's, tens place's, and hundreds place's.
B : the coefficient of x^2 must be positive
The coefficient of x^2 (a) can be negative as well
Answer: It looks like you are missing the question here. Most of the time in this type of questions, we are looking for the 3rd angle.
Let's assume that you need the 3rd angle.
There are 180 degrees in a triangle. We know 2 of the angles, so by subtracting them from 180 we can find the 3rd angle.
180 - 45 - 60 = 75
Angle C is 75 degrees. In the similar triangle Angle R is also 75 degrees because the corresponding angles are congruent.
