Please use " ^ " to indicate exponentiation: x^2 + 3x - 4 = 0
Here, a = 1, b = 3 and c = -4.
The formula for the discriminant is b^2 - 4(a)(c).
Substituting the given values of a, b and c, we get:
(3)^2 - 4(1)(-4)
Evaluating this, we get 9 + 16 = 25.
The discriminant is 25.
-3 plus or minus √25
Taking this further, x = ------------------------------------
2
-3 plus or minus 5
or: x = -------------------------------- => {-4, 1} (solutions)
2
Answer:
1 and 5= corresponding angles.
4 and 2=vertical opposite angle
3 and 6=co interior angle.
5 and 8=linear pair.
5 and 3= alternate interior angle
2 and 8=alternate exterior angle.
The answer is 15.
30% of 60 = 18
45% of 60 = 27
27 + 18 = 45
60 - 45 = 15
Let, the original price = x
x*20 /100 = 27
x = 2700/20 = 135
Original price was $135
Answer:
Parallel is undefined
Perpendicular is 0
Step-by-step explanation:
The line x = -42 is a vertical line through the x-axis. As such its slope is undefined. All parallel lines have the same slope and will also be undefined. Perpendicular lines will be lines horizontal through the y-axis. This means the slope of any perpendicular line to it will be 0.
