josmanu235
23.11.2021 •
Mathematics
Find all zeros f(x) = 3x^2+8x+7
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Ответ:
9514 1404 393
6. A
7. C
8. E
Step-by-step explanation:
6. If s is the number of programs sold for $0.45 each, then the contribution to Devon's pay (p) from selling programs is 0.45s. The per-game pay is added to that to give Devon's total pay:
p = 0.45s + 40 . . . . . matches choice A
__
7. If Robert earns $25 per hour for x hours in tips, his tip pay is 25x. The flat rate is added to that to give the amount Robert makes:
y = 25x + 40 . . . . . matches choice C
__
8. The graph of a proportional relationship is a straight line through the origin. This description matches B and C only, choice E.