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:
5250 g
Step-by-step explanation:
Given : Density of liquid is 1.50 g/ml
Volume of liquid is 3.50 liters
Solution :
Since 1 liter = 1000 ml
So, Volume of liquid is 3.50 liters = 3.5*1000 = 3500 ml.
Now 
Hence , the mass of the liquid is 5250 g.
Answer:
Answer a h bro ok bye bro good luck
Answer:
300%
Step-by-step explanation:
Let p be the percent, of means multiply and is means equals
p*24 = 72
Divide each side by 24
24p/24 = 72/24
p =3
Multiply by 100 to change from decimal form to percent form
3*100
300%
Twenty two three's go into 70.
