Step-by-step explanation:
an = 2n^2 - 3 · Anonymous. -1, 5, 15, 29, 47, ... an = 2 n^2 - 3.
Angle a = 60
given that all angles of a triangle added together must equal 180
x = -20
-20+80=60
do it again for the other angle measurement
60+60+40=180
therefore, angle A is 60°
(8)(-4.5) is not equivalent because 8 times -4.5 results in negative value
Answer:
Step-by-step explanation: 36-30%= 25.2
your answer should be 25.2
