What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0? units

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x