The vectors are perpendicular when their dot product is zero. That is
.. a^2 -a -3 = 0
.. (a -1/2)^2 -13/4 = 0
.. a = (1 ±√13)/2
For this case we have that by definition, the equation of the line of the slope-intersection form is given by:
Where:
m: It's the slope
b: It is the cut-off point with the y axis
We have to, if two lines are parallel then their slopes are equal.
Given the line 
, with slope
. A parallel line will have slope 
and its equation will be of the form:
We substitute the given point and find "b":
Finally, the equation is:
Answer:
Answer:
i don't know football but that's nice dude
Answer:
400^2 = 160 000
Step-by-step explanation:
The square of a number means the product of a number by itself, while the perfect square ... For example, the number 9 is a perfect square because it can be expressed as a product of ... A square football pitch has a perimeter of 400 meters.
Answer:
2320000
Step-by-step explanation
work out the perimeter first 6+4 times 2= 20
20 time 2m high=40
40 times 58000= 2320000
