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What equals 43?
X2 + 44x + 43
What is 2x-3 equals 13?
2X - 3 = 13 add 3 to each side 2X = 16 divide both sides by 2 X = 8 check 2(8) - 3 = 13 13 = 13 checks
What number comes next 5 13 29 61 125?
the series is 2n+3 with n being the previous number 2(5)+3=13 2(13)+3=29 2(29)+3=61 2(61)+3=125 2(125)+3=253<----answer
What number comes next 1 - 1 - 2 - 3 - 5 - 8 - 13?
1+1=2 1+2=3 2+3=5 ... 8+13=21
What is the least common multiple of 6 8 and 13?
The prime factors of 6 are 2 and 3. The prime factors of 8 are 2, 2, and 2. The prime factors of 13 are 13. From 6, we have factors 2 and 3. From 8, we have 2, 2, and 2, but we already have one 2 from the factors of 6, so we only need to include two more 2s. So, now we have 2, 3, 2, and 2. From 13, we have the factor of 13. So, to determine the least common multiple, multiply 2 x 3 x 2 x 2 x 13 = 312. Double check: 312 ÷ 6 = 52 which is 13 x 2 x 2 312 ÷ 8 = 39 which is 13 x 3 312 ÷ 13 = 24 which is 2 x 2 x 2 x 3 There are no common prime factors for the three quotients, so 312 is confirmed as the least common multiple.
