This is an example of an arithmetic sequence.
On level one: a 1 = 13.On level twelve: a 12 = 123.The sum of all 12 levels:S n = n/2 * ( a 1 + a n )S 12 = 12/2 * ( a 1 + a 12 )S 12 = 6 * ( 13 + 123 )S 12 = 6 * 136S 12 = 816Answer: I will have 816 gems matched.
5/6 divided by 6.5
Convert decimal into fraction
5/6 divided by 13/2
Multiply by reciprocal
5/6 times 2/13
Reduce the numbers using Greatest Common factor which is 2
5/3 times 1/13
Multiply the fractions
5/39
Final answer
The correct answer is C "never."
The hypotenuse in a 30-60-90 triangle is the shorter leg doubled. So, it's 2x where x is the shorter leg.
In fact, the square root of two is not used to calculate any other sides in a 30-60-90 triangle. The shorter leg is x, the medium leg is x√3, and the hypotenuse is 2x.