Given a quadratic equation 
, we define the discriminant as
The number of real solutions of the equation depend on the sign of 
:
- If
the equation has two solutions - If
the equation has one double solution - If
the equation has no real solutions
In this case, we have
And so this equation has no real solutions.
Answer:
3(x/4) - 1/2 (x/10) or you can just do 0.7x but I don't think that counts as an expression, so just put 3(x/4) - 1/2 (x/10).
Step-by-step explanation:
Answer: letter a should be the correct answer
Step-by-step explanation:
answer is 4pi
Step-by-step explanation:
Area of circle is measured by formula pi R squared, since diameter is 4 and radius is half of diameter then radius is 2 so Pix2^2=4pi
