Answer:
1/60466176
Step-by-step explanation:
Given: (6^2)^4 ÷ 6^18
Parentheses: 36^4 ÷ 6^18
36^4 ÷ 36^9 (Because 6^18=6^2^9=36^9)
36^-5 (Exponents get subtracted)
1/(36^5)
1/60466176
Another way:
(6^2)^4 ÷ 6^18
6^(2*4) ÷ 6^18
6^8 ÷ 6^18
6^(8-18)
6^-10
1/(6^10)
1/60466176
Answer:
512
Step-by-step explanation:
Suppose we ask how many subsets of {1,2,3,4,5} add up to a number ≥8. The crucial idea is that we partition the set into two parts; these two parts are called complements of each other. Obviously, the sum of the two parts must add up to 15. Exactly one of those parts is therefore ≥8. There must be at least one such part, because of the pigeonhole principle (specifically, two 7's are sufficient only to add up to 14). And if one part has sum ≥8, the other part—its complement—must have sum ≤15−8=7
.
For instance, if I divide the set into parts {1,2,4}
and {3,5}, the first part adds up to 7, and its complement adds up to 8
.
Once one makes that observation, the rest of the proof is straightforward. There are 25=32
different subsets of this set (including itself and the empty set). For each one, either its sum, or its complement's sum (but not both), must be ≥8. Since exactly half of the subsets have sum ≥8, the number of such subsets is 32/2, or 16.
a writer will use a for the informal language
So 161 divide 7 equals 23 so therefor he types 23 words per minutes. 23 times 20 equals 460. I think he can type 460 words in 20 minutes.
Answer:
73:42
Step-by-step explanation:
1115-73=42
G : B
73 : 42
