When solving (-2)5(-2)-8, you would first, following PEMDAS ofcourse, multiply -2 and 5, getting -10. Then you would multiply -2 and -10, which would be positive 20. Lastly, you would subtract 8 from 20, which equals 12.
I cannot find an answer within the options you gave me, but I am 100% sure that (-2)5(-2)-8 equals 12.
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Answer:
NLO or OLN
Step-by-step explanation:
I'm not exactly sure but this is my guess
Answer:
a) 7
Step-by-step explanation:
a+b = 12
b+c = 17
a+b+c=22
12+c=22
c=10
b=7
a=5
A triangle solver tells you
C = 85° b ≈ 8.4 c ≈ 10.4From the sum of angles of a triangle,
C = 180° -42° -53° = 85°
From the law of sines
b = sin(53°)/sin(42°)*7 ≈ 8.355
c = sin(85°)/sin(42°)*7 ≈ 10.422