hopkinsgail569
04.12.2020 •
Mathematics
Can some one please help
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Ответ:
A) 0.5(2) + 80 = 81
B) 83
C) f(4) = 0.5(4) + 80 = 82
g(x) = 2x + 79
Slope: (83-81)/(2-1) = 2
y = 2x + c
When x = 1, y = 81
81 = 2 + c
c = 79
g(x) = 2x + 79
g(4) = 2(4) + 79 = 87
Since 87 > 82,
Science has a higher average after 4 tests