First, distribute (turning everything into a decimal at first to make more sense) : .4x - 3 + .6x = 4.25
Combine like terms : x - 3 = 4.25
Add 3 to both sides : x = 7.25
As a fraction : 7 1/4
Answer:
f(-2) = -1
Step-by-step explanation:
f(x) = -x^2 + 3
f(-2) means when x is -2
Shown in the graph below, the point of solution is: (-2,-1), so when x is -2 y is -1
Answer:
The mean would best indicate the table size needed.