The discriminant of a quadratic equation is useful in determining the nature of its roots. Further, it can be solved by the equation,
D = b² - 4ac
From the given equation, b = 3, a = 2, and c = -5. Substituting the given to the equation,
D = 3² - (4)(2)(-5) = 49
Thus, the answer is the fourth choice, 49.
Answer:
Step-by-step explanation:
5x + 15 + 2x = 24 + 4x
7x + 15 = 24 + 4x
7x - 4x = 24 - 15
3x = 9
x = 9/3
x = 3 <====
Answer:
20 minutes
Step-by-step explanation:
So the question is how many minutes does it take to fill the pond. If I'm not right leave a not.
W = T * rate
R = 35 Liters / minute
W = the amount needed to be filled. = 700 L
T = time to fill the pond
700 = 35 L / minute * T Divide by 35
700 / 35 = T
T = 20 minutes
