A graph of the equation shows the appropriate choice to be
C. 2_____
If you would rather, you can look at the value of the discriminant. For the equation y = ax²+bx+c, the discriminant (d) is
d = b²-4ac
For your equation, this evaluates to
d = (-8)²-4(2)(5) = 64 -40 =
24When the discriminant is
positive, the function has
two real roots (2 x-intercepts). When it is zero, there is only one x-intercept, and when it is negative, there are none (the roots are complex).
The second proportion is correct and it will be 6 hours.
Answer:
$96.86
Step-by-step explanation:
129.42-32.56 = 96.86
Lily still has to pay $ 96.86
Answer:
A
Step-by-step explanation:
Answer: B, you have to multiply the (A) area by 10 and then you divide the circular base of the tank, then you add those 2 answers and you have it as the function of the radius!