Answer:
The roots are;
x = (2 + i)/5 or (2-i)/5
where the term i is the complex number representing the square root of -1
Step-by-step explanation:
Here, we want to use the completing the square method to solve the quadratic equation;
f(x) = -5x^2 + 4x -1
Set the function to zero
0 = -5x^2 + 4x - 1
So;
-5x^2 + 4x = 1
divide through by the coefficient of x which is -5
x^2 - 4/5x = -1/5
We now take half of the coefficient of x and square it
= -2/5^2 = 4/25
add it to both sides
x^2 - 4x/5 + 4/25= -1/5 + 4/25
(x- 2/5)^2 = -1/5 + 4/25
(x - 2/5)^2 = -1/25
Take the square root of both sides
x - 2/5 = √( -1/25
x - 2/5 = +i/5 or -i/5
x = 2/5 + i/5 or 2/5 - i/5
Answer:
5,000 Meters
Step-by-step explanation:
because each kilometer equals 1000 meters
Answer:
72+ 18x
Step-by-step explanation:
9x+72+5x+4x
72+ 18x
Answer:
D. 5
12 - 7 = 5
just shoot the answer . i dont know actually
Answer:
Hence, the common alphabets in which the perpendicular line segments are easily visible are:
E F H LT
Step-by-step explanation:
Perpendicular lines or line segments intersect to form a right or 90 degree angle.
In this particular font, in uppercase
B D E F H I K L M N P R and T all have perpendicular segments,
G has a short perpendicular segment
J has a perpendicular segment which ends in a curve
U has two perpendicular segments joined by a curve
