Answer:
D
Step-by-step explanation:
![\[\frac{x}{x^{2} +3x+2} -\frac{1}{(x+2)(x+1)} =\frac{x}{x^2+3x+2} -\frac{1}{x(x+1)+2(x+1)} =\frac{x}{x^{2}+3x+2 } -\frac{1}{x^{2} +2x+x+2} =\frac{x}{x^{2} +3x+2} -\frac{1}{x^{2} +3x+2} =\frac{x-1}{x^{2} +3x+2} \]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7Bx%7D%7Bx%5E%7B2%7D%20%2B3x%2B2%7D%20-%5Cfrac%7B1%7D%7B%28x%2B2%29%28x%2B1%29%7D%20%3D%5Cfrac%7Bx%7D%7Bx%5E2%2B3x%2B2%7D%20-%5Cfrac%7B1%7D%7Bx%28x%2B1%29%2B2%28x%2B1%29%7D%20%3D%5Cfrac%7Bx%7D%7Bx%5E%7B2%7D%2B3x%2B2%20%7D%20-%5Cfrac%7B1%7D%7Bx%5E%7B2%7D%20%2B2x%2Bx%2B2%7D%20%3D%5Cfrac%7Bx%7D%7Bx%5E%7B2%7D%20%2B3x%2B2%7D%20-%5Cfrac%7B1%7D%7Bx%5E%7B2%7D%20%2B3x%2B2%7D%20%3D%5Cfrac%7Bx-1%7D%7Bx%5E%7B2%7D%20%2B3x%2B2%7D%20%5C%5D)
Divide the total distance traveled by the total time spent traveling. Your estimated speed should be reletively close to your calculated speed.
(please give brainliest)
The answer is the second one I believe
In a right triangle, one angle should be a right angle, which means that angle should be 90°. Right angles are always 90°.
And in any triangle, the sum of the 3 interior angles should add up to 180°, this rule is always the same. Therefore, to find the third angle, we should simply subtract the angles we already know from the angle sum of triangle.
We can therefore list this equation:
Third angle = 180° - 24° - 90°
Third angle = 66°
Your answer should be 66°
