I do believe the correct and is 9 inches
Answer:
He is incorrect in this statement because 38 and 40 both have factors, other than 1 x itself. Prime numbers are numbers the only have 1 factor pair, and that is 1 x itself. Factors are the numbers you multiply to get the end result, and an example is 10x4=40. The factors of 40 are 8x5, 4x10, 2x20, and of course, 1x40. The factors of 38 are 2x19, and 1x38.
Use the sine law: sinB/b = sinA/a
SinB = b*sinA/a
sinB = 3*sin120° /8
∠ B = 18.94° ≈ 19°
Answer: Try using calculatorsoup dot com, you need to be more specific, and use Find A, C and r | Given d?
radius r = 7.5 in
diameter d = 15 in
circumference C = 47.123889803847 in
area A = 176.71458676443 in2
In Terms of Pi π
circumference C = 15 π in
area A = 56.25 π in2
Step-by-step explanation: