Joseph17Peralta
29.10.2019 •
Mathematics
If f(x) = 5x + 40, what is f(x) when x = –5?
–9
–8
7
15
Solved
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Ответ:
Step-by-step explanation:
since f acts on x lets plug in -5 for x in f(x)
f(-5)=5(-5)+40=15
f(-5)=15
Ответ:
x + x + 1 + x + 2 + x + 3 + x + 4=110
5x=100
x=20
4rth number is 24