What are the solutions to the equation x2 + 4x + 5 = 0?

X = -4 + 21 or x = -4 - 21
x= 1 or x = 4
x= -2 + 1 or x = 2 - 1
x= -2 + 1 or x = -2 - 1

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?