Answer:
f(5.9)= 15.7
Step-by-step explanation:
f(x) = 3x -2
f(5.9) = 3(5.9) -2
f(5.9) = 17.7 -2
f(5.9) = 15.7
Word Explination
If the (x) in f(x) is replaced by another variable (in this case, a number) any other x seen in the equation is replaced by that variable. For this question, the x in f(x) is replaced by 5.9. And so any other x in this equation needs to be replaced by 5.9 as well. From there on out, you solve.
My Work/Reasoning:
First we find the sum of 1/3 and 1/5.
Then, we find the multiplicative inverse, I guess it's also known as the reciprocal.
turns into
Finally, we simplify.
20% 25-20 equals 5. 5 divided by 20 equals .2 or 20%
12^4 which is equal to 12 times itself 4 times
3.14(3(2) + 3(4))
3.14( 6 + 12)
3.14(18)
=56.52
