30) which equation demonstrates the distributive property?
2 (
57)-2 (5)
25+77-2 x 5 + 2x7
2*5)*7 - 2* (5 * 7)
D)
7 x 12 x 5) = 7 (5 * 2)

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

what

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

not sure but it may be b, as i said i'm not sure.