Answer:
The sum of a number and its additive inverse is equal to 0.
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
-4-5/4-(-2)
-9/6
3/2
Answer:
n=37
Step-by-step explanation:
45-8=37
Answer:
angles 1 4 and 5 are all equal to 113 and angles 2 3 6 and 7 equal 67
Cos(θ) = -20/√((-20)^2 +(-21)^2)
.. = -20/-√841 . . . . . . . . . . . . . . . . . θ is a 4th-quadrant angle, so cos(θ) > 0
.. = 20/29
The value of the cosine is 20/29.
