Solve the problem.Maxwell's theory of electromagnetic waves established that electromagnetism moved through space in waves. Under certain conditions, an equation that Maxwell used to explain the motion of such waves would take the form  where ? is the angle of incidence of the original wave, ? is the angle of incidence of the wave when reflected, A is the amplitude of the original wave, and B is the amplitude of the wave when reflected. Find the value of  when -4.0px;" /> and  Round to four decimal places.



A. 0.3417

B. -0.9245

C. 0.4789

D. -0.3492

---

Answer: A

Mathematics

State the multiplication property illustrated by the given equation.1 × (-7900) = -7900

A. Identity B. Distributive C. Commutative D. Zero

Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary.x - 2y = 8-3x + 6y = - 24

A.
B. ?
C.
D.

Expand the expression using the Binomial Theorem.(x + 7)5

A. x5 + 35x4 + 490x3 + 3430x2 + 12,005x + 16,807 B. x5 + 35x4 + 980x3 + 6860x2 + 12,005x + 7 C. x5 + 35x4 + 490x3 + 3430x2 + 12,005x + 7 D. x5 + 35x4 + 980x3 + 6860x2 + 12,005x + 16,807

Solve the problem.If the average cost per unit C(x) to produce x units of plywood is modeled by C(x) = ,what is the unit cost for 50 units?

A. $24.00 B. $0.60 C. $5.00 D. $13.33