70C4= 70!/[(70 - 4)!4!]= 70!/(66!4!)= (70 x 69 x 68 x 67 x 66!)/(66! x 4 x 3 x 2 x 1)= 35 x 23 x 17 x 67= 916,895
3X - 4 = 66 add 4 to each side 3X - 4 + 4 = 66 + 4 3X = 70 divide each sides integers by 3 (3/3)X = 70/3 X = 70/3 ------------------check in original equation 3(70/3) - 4 = 66 210/3 - 4 = 66 70 - 4 = 66 66 = 66 ---------------checks ( naturally, you could have canceled here, 3(70/3) and just got 70 )
That depends on what mathematical operations one may perform on the numbers (65 + (4-3)) X (2-1) = 66 ((6 x 5) +3) x (4-2) x 1 = 66
√264 = √(4 x 66) = 2 √66
3/4 x 88 = 66
.4 x 165 = 66
66 inches (4 sides x 16.5 = 66)
44 x 4/4
(7 x 10) - 4 = 66
16.5 x 4
x = 10
Amounts of parts: (66*48)/16 = 198 square sheets