ijohnh14
01.07.2019 •
Mathematics
Afunction of x is two less than twice a number. what is f(3)
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Ответ:
F(x)=2x-2
f(3)=2(3)-2
f(3)=6-2
F(3)=4
Ответ:
10
Step-by-step explanation:
"three times r" = 3r
"three times r minus ten" = 3r - 10
"product of 5 and the difference of three times r minus ten"
= 5 (3r - 10)
given that r = 4,
the expression becomes
5 (3r - 10)
= 5 [3(4) - 10]
= 5 [12 - 10]
= 5 (2)
= 10