We can use quadratic formula to determine the roots of the given quadratic equation.
The quadratic formula is:

b = coefficient of x term = 4
a = coefficient of squared term = 1
c = constant term = 7
Using the values, we get:
So, the correct answer to this question is option A
Answer:
B
Step-by-step explanation:
Gambling is the act of risking something of material value on an uncertain outcome. The people who gamble are totally unaware of the outcome. The outcomes are unpredictable so it is risking something of material to win a something of greater material value.
Answer:
-0.04x +17.2
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
Answer:
The price elasticity of demand is calculated as the percentage change in quantity divided by the percentage change in price.