Answer:
Step-by-step explanation:
49b² - 81 = (7b)² - 9 ²
by identity : 49b² - 81 = (7b - 9)( 7b + 9)
By the fundamental theorem of calculus,
So we have
20.5/3.25 = 6.3
<span>so only six with a little cloth left over</span>
Answer:
y = 12-(61) is the answer !!
Direct variation means their ratio is a constant
x/y is 9/45=1/5
so when x=2, y=5*2=10