Answer:

Step-by-step explanation:
Quadratic Formula: 
√-1 is imaginary number i
Step 1: Define
y = -3x² + 4.5x - 20
a = -3
b = 4.5
c = -20
Step 2: Substitute and Evaluate







Answer:
x¹²
Step-by-step explanation:
You need to indicate which terms are exponents. For example, (x⁴)³ can be written as (x^4)^3.
(x⁴)³ = x⁴*³ = x¹²
Answer:
4 days
Step-by-step explanation:
6 divided by 3= 2 liters per day
2,4,6,8
I hope it is right
The answer is -3 because -3+2=-1 then -1(4)=-4