Answer:
-12771250
Step-by-step explanation:
We want to evaluate;

We expand to get;


We multiply to get;

We now subtract to get :

Answer:
15.7
Step-by-step explanation:
Circumference= πd
d= Diameter
I believe it would be 160000
Answer:
1.39 × 10¹² or 1.39 × 10^12
Step-by-step explanation:
Step-by-step explanation:
all angles of a triangle sum to 180
180 = 15x + 24x +21x
180=60x
solve for x
then substitute that for 24(x) to get the angle