Answer: First set is 3,4 and 5 Second set is 1,2 and 3
Explanation: Assume that the smallest number is n. Since the three numbers are consecutive, this means that the other two numbers would be n+1 and n+2
Now, we know that the product of the larger two numbers is 1 less tan than 7 times the smallest. This means that: (n+1)(n+2) = 7n - 1 .........> equation used to find the sets n² + 2n + n + 2 = 7n - 1 n² + 3n + 2 = 7n - 1 n² + 3n + 2 - 7n + 1 = 0 n² - 4n + 3 = 0 (n-3)(n-1) = 0 This means that: either n-3=0 ..........> n = 3 or n-1=0 ..........> n = 1
The correct answer for the question that is being presented above is this one: "(d) the hollow bix." The large, flat piece of wood within a piano serves the same purpose as <span>(d) the hollow bix. The piece of flat wood will help piano produce a good quality sound.</span>