12 because 7x10=70+7=77+7=84
Answer:
set two equation of line y=ax+b and y=cx+d
when these two lines are perpendicular to each other, then a*c=(-1)
set answer is y=ax+b
we can know that a=1/6
bring in a=1/6 and(-4,5)
5=(1/6)*(-4)+b
=>5=(-2/3)=b
=>b=5 2/3
answer is y=(1/6)x+5 2/3
D. W=45 yards (I just guessed and checked 78*50 was too high, so I did 78*45 and it worked)
E. 85*50=8250 yd²
Answer:
1. 7
2. 3
3. 9
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation: