What we know:
shape is circular
Area=64π yr²
Area=πr²
circumference=2πr
In order to find circumference we need r=radius. We can use the area to find r by solving for r using substitution of the information we know above.
Area=πr²
64π=πr² substitution
64π/π=π/πr² multiplicative inverse
64=r²
√64=√r² properties of radicals
8=r We would get two solutions, a positive and negative one but we will only use the positive solution since radius is positive
Circumference=2πr
C=2π(8)=16π yards
Answer:
I think its b but im not sure
Step-by-step explanation:
Answer:
(-2, -4.5)
Step-by-step explanation:
Answer:
y = x + 3y = x - 1
Step-by-step explanation:
Just graph them!
Hope I could help.
