use cos to get an equation and then solve.
Answer:
1/2-1/2, 3
Step-by-step explanation:
Notice that the ratio of the first and second terms is the same as that between the third and fourth terms. So this cubic will factor by grouping:
Answer:
Step-by-step explanation:
Answer:
D. on edge
Step-by-step explanation:
Answer:
C) 78
Step-by-step explanation:
its technically 77.5714... but rounds to 78, hope that helps