Answer:
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
The first function is correct
Step-by-step explanation:
Given f(2) =9 and given functions are f(x) = 2x+5 and f(x) =4x+5
The fsecond function is not satisfies f(2)=9 because
f(x) = 4x+5
f(2) = 4(2)+5 = 13≠9
f(x) = 2x+5
f(2) = 2(2)+5=9
therefore first function is satifies
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
The first gym will cost 570 a year and the second 720 you will have saved 150 a year if she goes to the first
What goes into 70 and 95 is 5
Answer:
d=2
Step-by-step explanation:
3d + 6 = 12
first subtract 6 from both sides
3d=6
divide by 3 on both sides
d=2