Answer:
8
Step-by-step explanation:
9514 1404 393
Answer:
y = 8
Step-by-step explanation:
You will get the same value for y whether you approach the problem by making corresponding angles equal, or by making corresponding sides equal. The equation for the sides takes less work to solve.
2y -3 = y +5
y = 8 . . . . . . . . add 3-y to both sides
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<em>Check</em>
This value of y makes the angles ...
(6y -5)° = (6·8 -5)° = 43°
(4y +11)° = (4·8 +11)° = 43°
Corresponding angles and the side between them have the same measures, so the triangles are congruent by ASA.
Answer:
Step-by-step explanation:
If points lie on the same plane, then they are coplanar.
Answer:

Step-by-step explanation:
For this question, set u = arctan(x). This would be the easiest way because the derivative of arctan(x) is
which is what we have. Before setting u, always look at the question and think about possible derivatives.

Next, plug in u and du.
(rearranging)


Substitute arctan(x) back in for u and add +C.
