Answer:
D x≥4
Step-by-step explanation:
−7 ≥ 13−5x
5x ≥ 20
x ≥ 4
Answer:
<h2>x = 30°</h2>
Step-by-step explanation:
The angle 30° and 2x are complementary angles.
Two angles are called complementary angles, if their sum is one right angle (90°).
Therefore we have the equation:
30 + 2x = 90 <em>subtract 30 from both sides</em>
2x = 60 <em>divide both sides by 2</em>
x = 30
Answer:
30
Step-by-step explanation:
It is an equalateral triangle
Answer:
In part B the answer is 71.
Step-by-step explanation:
In the 3 lines the 2 uppermost and downer most lines look like they make up a 90 degree angle.. since the first one is 19 all we have to do is 90 - 19 which equals 71. Sorry I do not know the answer to part A :(
is in quadrant I, so
, which means
, so
belongs to the same quadrant.
Now,
Since
, it follows that
Since
belongs to the first quadrant, you take the positive root (
for
in quadrant I). Then
is also positive for
in quadrant I, so you take the positive root again. You're left with
