For the graph, what is a reasonable constraint so that the function is at least 600? Please only submit REAL answers WITH an explanation as to why you chose it!

graph of y equals minus 2 times the square of x plus 40 times x plus 600

A- −10 ≤ x ≤ 30
B- x ≥ 0
C- All real numbers

Please right answers only!

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

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?

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.