3 ( 3x + 6 + x ) = 1
Step 1, apply distributive method.
9x + 18 + 3x = 1
Step 2, simplify the following
12x + 18 = 1
Step 3, Change side
12x = -17
Final answer
x = -17/12
<em>The </em><u><em>error/mistake was in step 2</em></u><em> where [ 9x +3x = 12x ]</em>
<em />
<u><em>Recheck the answer</em></u>
3 ( 3x + 6 + x ) = 1
3 ( 3(-17/12) + 6 + -17/12 ) = 1
1 = 1
Hence proved our solution is correct.
It is convenient to start with the 2-point form of the equation for a line.
... y - y1 = (y2 - y1)/(x2 - x1)×(x - x1)
Either point can be (x1, y1), and the other can be (x2, y2). If we take them in order, we get
... y - 4 = (16 - 4)/(5 - 3)×(x - 3) . . . . . fill in the two points
... y = 12/2(x -3) +4 . . . . . . . . . . . . . . add 4, simpliffy a bit
... y = 6x -18 +4 . . . . . . . . . . . . . . . . . eliminate parentheses
... y = 6x -14 . . . . . . . . . . . . . . . . . . . . put in slope-intercept form
Look at one of the graphs you have a question about. Then take a vertical line and place it on the graph. If the graph is a function, then no matter where on the graph you place the vertical line, the graph should only cross the vertical line once.
Answer:
Yes, because it has an end.
Step-by-step explanation:
Rational numbers end, while irrational numbers continue on and there is no visible pattern.
Answer:
C
Explanation:
A: 2 in. by 2 in. by 1 in. = 4 cubic inches
B: 1 in. by 1 in. by 1 in. = 1 cubic inches
C: 2 in. by 1.5 in. by 0.5 in. = 1.5 cubic inches
D: 3 in. by 0.5 in. by 1.5 in. = 2.25 cubic inches
Therefore, the answer is C.
