Answer:
A = (16π - 8) cm^2
Step-by-step explanation:
The shaded area is trhe area of the circle minus rthe area of the truiangle,.
A = πr^2 - bh/2
A = π(4 cm)^2 - (4 cm)(4 cm)/2
A = 16π cm^2 - 8 cm^2
A = (16π - 8) cm^2
The ratio of circumference of circle to its diameyer is the number π ,a mathematical constant, commonly approximated as 3.14159 :)
Answer:

Step-by-step explanation:
This expression is equal :

Here we can use this rule :

Now, 64 we can write like : 

Now we can use our rule :

When we simplify, we have :
8y^{50}
Answer:B:(1,-1)
Hope it helps!