Select the correct answer.
given: bc || de, and ∠gac ≅ ∠afd.
what is the missing step in the proof?

How many solutions does the nonlinear system of equations graphed below have?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Let x = a + bi and y = c + di and z = f + gi. which statements are true?