Answer:
Can't answer if you don't have the answers
<u>Answer:</u>
A) There are two complex solutions.
<u>Step-by-step explanation:</u>
To know how many solutions a quadratic equation has, calculate the discriminant of the equation.
discriminant = b² - 4ac
where a = coefficient of x²
b = coefficient of x
c = constant of equation
if b² - 4ac > 0 , then equation has 2 real roots
if b² - 4ac = 0 , then equation has 1 real, repeated root
if b² - 4ac < 0 , then equation has 2 complex roots
In this case, discriminant = 9² - 4(-2)(-12)
= -15
As -15 < 0, equation has 2 complex roots.
Mark the fee as x. Then, make the following equation :
The initial fee is $ 50, and the hourly rate is 1.2 times higher. Thus, the hourly rate is
Her hourly rate is $60.
<h3>Jon earned $38,000 last year . He paid $6,840 for entertainment what percent of his earnings did Jon pay in entertainment expenses?</h3>
We can establish a proportion:
If $38,000 is => 100%
Then $6,840 is => P%
P% = $6,480 x 100/$38,000 = 18%
Answer = 18 %
Answer:
i wanna say 12.8, 13.3, 13.8
im not sure though, i hope this helps