Which equation demonstrates the distributive property? A) 7(1 + 6) =7(6 + 1)
B) (7 x 1) x 6 = 7 x (1 x 6)
C) (7 x 1) x 6 =7 x (6 x 1)
D) 7(1 + 6) = (7 x 1) + (7 x 6)

D

Step-by-step explanation:

The distributive property takes place when you distribute what is outside of the parentheses into the parentheses, separating out the equation into easier to develop parts. D does this exactly.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

so, converting firstly the mixed fractions to improper fractions and then "adding".