B. {1,2} because they are both whole numbers 0 is not one.
(Proof: Whole Numbers: This set is closed only under addition and multiplication. Integers: This set is closed only under addition, subtraction, and multiplication. Rational Numbers: This set is closed under addition, subtraction, multiplication, and division (with the exception of division by 0)"
Answer: 21.00
Step-by-step explanation: 48-27 = 21
Answer: 38.5 cm^2
Step-by-step explanation:
Length of wire = 7*2 + 4*2 = 22 cm
Radius of Circle = 22/(2pi) = 3.5 cm
Area of Circle = (3.5)^2*pi = 38.5 cm^2
Ratio of a leg to the hypotenuse = 1: sqrt2 where x = length of a leg, so
1 /sqrt2 = x / 8
x = 8 / sqrt2 = 8 sqrt2 / 2 = 4 sqrt2 or 5.66 to nearest hundredth answer