Answer:
its one
Step-by-step explanation:
octagon-4
hexagon-3
4-3=1
your welcome
The first one is 2x+y=-1
the second one is 13x+2y-1=0
Answer:
c 32 out of 80 were surveyed
How does your figure look like?
Answer:
t=5
Step-by-step explanation:
∵ (t,17) lies on (x,y) plane y=x²-3x+7,t>0
∴ 17=t²-3t+7
t²-3t+7-17=0
t²-3t-10=0
t²-5t+2t-10=0
t(t-5)+2(t-5)=0
(t-5)(t+2)=0
t=5,-2
t>0
so t=5
