I take it that only 7 stamps are misplaced and that we are asked for the total value of the stamps including those which have been misplaced.
If each is worth $0.15 then, the total worth of 7 stamps is $1.05. Then, we add this value to the value of his remaining stamps, $5.55, the answer would be $6.60.
Let's solve your equation step-by-step.
x2−4x+3=0
Step 1: Factor left side of equation.
(x−1)(x−3)=0
Step 2: Set factors equal to 0.
x-1=0 or x-3=0
For this one add one on both sides
x−1+1=0+1 x=1
For this one add 3 on both sides
x−3+3=0+3. x=3
x=1 or x=3
Notice, the third decimal place is 9 in 3.469644...
and after the 469 there's a 6, that means we can round that 469 to a 470
3.470.
Answer:
Step-by-step explanation:
Since we know the line goes through points
and
, we can construct a line in slope-intercept form

where
is the slope and
is the Y-intercept.
The slope can be found using the two points provided:



The line is now represented as

To solve for
, we can plug in one of the two points:




We know have our line:

To determine if the point
falls on this line, we just plug the numbers into the equation and see if it holds true:





This does not hold true, so the point is not on the line.