314.16 yards^2 for the Area
Step-by-step explanation:
You have miscopied the second equation as it contains a third variable B when there isn't a B in the answers.
Please correct it for assistance
Answer:
13
Step-by-step explanation:
n+(n+2)+(n+4)=42
3n+6=42
3n=42-6=36
3n=36
n=13
13+14+15=42
Sec∅ = 1/cos∅
= 1/cos(240)
= 1/cos(180 + 60)
= 1/-cos(60)
= 1/(-1/2)
= -2