<u><em>Answer: =2 *The answer should be the positive sign. </em></u>
Step-by-step explanation:
adding the numbers. add it's going to be add all together. sum it's a total of different amounts added together.
remove parenthesis.
-10+12=2
it's should be subtracting the numbers.
12-10=2
=2
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0 = 3x² + 2x - 2
Perfect example of a leading coefficient (coefficient of the highest degree term) of 3 and a constant term (degree zero) of -2. CHECK ME
0 = -2 - 3x² + 3
That has a leading coefficient of -3 and a constant of -2+3=1, so don't check me.
0 = -3x + 3x² - 2
CHECK ME. The order we write the terms doesn't matter; the leading coefficient is on the highest degree, 3x² here. The constant is -2.
0 = 3x² + x + 2
The leading coefficient is indeed 3 but the constant is a positive two, don't check me.
0 = -1x - 2 + 3x²
CHECK ME. Again, the written order of the terms doesn't matter; it's the degree that matters.
The sum of the interior angles of a triangle is 180 degrees. Thus, y + 48 + 90 = 180, and y = 42 degrees.
If the angles of a triangle form an arithmetic sequence, the middle angle must be the average of the three angles, hence 180°/3 = 60°. The sum of the other two is then 180° -60° = 120°
The largest angle is 120° - 23° = 97°.
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The common difference is 37°.