If a theory is challenged, then that means that the theory may have a specific flaw, making it "not good"
Answer:
6 just multiply 2 times 3
When we want to determine the relative position of two lines, the first thing we can do is to write them in the same form.
We can use the form y=mx+k, where m is the slope.
the given lines are lines in plane. The "skew" case cannot be considered.
i) if 2 lines have same slope, but different k, then they are parallel,
ii) if 2 lines have equal slope (m) and k, then they are coinciding
iii) if the multiplication of their slopes is -1, then they are perpendicular
iv) if the slopes are not equal, and their multiplication is not -1, then the lines are intersecting
2.
4x+2y=8
2y=-4x+8, divide by 2
y=-2x+4
the other line is y=2x+4
-2 and 2 are not the same so the lines are neither parallel, nor intersecting.
-2 * 2 is not equal to -1, so the lines are neither perpendicular.
The lines are intersecting.
Answer:
x = - 
Step-by-step explanation:
given the equation
(x - 2) = 4x
multiply both sides by 5 to eliminate the fraction
2(x - 2) = 20x
2x - 4 = 20x ( subtract 2x from both sides )
- 4 = 18x ( divide both sides by 18 )
x = - 
= -
Answer:
9
Step-by-step explanation:
(3/2)^3 = 27/8
27/8 x 8/3 = 27/3 = 9
