F(x) = 8 - 3x
f(9) = 8 - 3(9)
= 8 - 27
= -19
hope this helps!
Answer:
6). unknown side is 6.23m
7). angle is 26.58 degrees
Step-by-step explanation:
you must use the Pythagoras theorem formula to find the unknown side if you have only two sides
Answer:
(5x+3)/2
Step-by-step explanation:
f(x)=(2x-3)/5
f(x)=y
y=(2x-3)/5
interchanging role of x and y
x=(2y-3)/5
5x=2y-3
5x+3=2y
y=(5x+3)/2
the inverse if f(x) = (5x+3)/2
Answer:
Yes, because by dividing x by his equivalent y, you find a constant of proportionality being 10.
x / y = 10
Step-by-step explanation:
20 / 2 = 10
50 / 5 =10
60 / 6 = 10
70 / 7 = 10