bobtothemaxthe1st
21.03.2020 •
Mathematics
7. What are the solutions of
(x + 2)(x-3) - 0?
A -2 and -3
B -2 and 3
C 2 and -3
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Ответ:
B) x=-2 and x=3
Step-by-step explanation:
(x + 2)(x-3) = 0
x+2=0 and x-3=0
x=-2 and x=3
Ответ:
A' = 103°
B' = 100°
C' = 80°
D' = 77°
Step-by-step explanation:
B' = 180 - 80 = 100°
C' = 80 because it is a corresponding to 80°
D' = 180 - 125 = 55, 180 - 48 - 55 = 77°
A' = 360 - 77 - 100 - 80 = 103°