Tan0 plus sec0 equals cos0 divided by 1 minus sin0

Ihave this math question 2/3 ÷2 1/10=

Alarge rectangle is divided into four smaller rectangles.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.