Use substitution to solve the system of equations. 2x+4y=8 3
x-5y=1

A. (2,1)
B. (-1,-13/11)
C. (–1, 2)
D. infinitely many solutions

On a piece of paper, graph . then determine which answer choice matches the graph you drew

Sketch one cycle if the cosine function y=2cos2theta

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18