Answer:
B
Step-by-step explanation:
cos(a) is AC/AB and sin(B) is AC/AB
Answer:
I think it's 10 or 10.5 not sure
Step-by-step explanation:
Answer:
just plug in
g(x)=7x
g(-7)=7*(-7)
7*(-7)=-49
Step-by-step explanation:
Answer:
D. The system is in echelon form.
Step-by-step explanation:
Check attachment