Answer:
its c d and e they're all greater than 5
We will use formula for circumference of circle:
lets name it as O
O = 2*r * pi
when we express r in this formula we get:
O = 2*2.2*pi
O = 4.4*pi
From this we can see that for given radius, answer is 4.4. The formula only depends on pi and that is what "in terms of pi" means.
We need to find a distance between this to points.
D=√((x2-x1)²+(y2-y1)²)
For complex plain, the real part of the complex number plays a role of x,
and number of an imaginary part plays a role of y.
So,
D=√((8-2)² +(7+1)²)√ = √(36+64)=√(100)=10
Answer is D.10
Answer:
A=right
B=obtuse
C=acute
D=obtuse
Step-by-step explanation:
