Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
cosa = , sina = , sin²a + cos²a = 1
Consider the left side
+
= cos²a + sin²a
= 1 = right side ⇒ verified
Step-by-step explanation:
when 2 lines cross, the angles on one side of one of these lines are mirrored to the other side.
and crossing a second, parallel line creates exactly the same angles there too, because crossing the second line is like crossing the first line. otherwise the 2 lines are not parallel. the second line is just a shifted version of the first line (and vice versa). all the other attributes are the same.
and all angles around a single point on one side of a line are together 180°.
because of all that,
angle 2 = angle 3 = angle 6 = angle 7 = 76°
angle 1 = angle 4 = angle 5 = angle 8 = 180-76 = 104°
Answer:
g
Step-by-step explanation:
Out of 80 rolls, the number three has come up 6+6+5+7=24 times. As a result, we can estimate the probability as 24/80=3/10, or 30%. The probability of rolling a three on a standard die is 16.7%, so the difference is 30%-16.7%=13.3%, or approximately 13%.
Answer:
I believe that the answer is a
Step-by-step explanation:
tangent is
opposite/adjacent