First century BC
1st century 1-100, 2nd century 101-200, 3rd century 201-300, 4th century 301-400, 5th century 401-500, 6th century 501-600, 7th century 601-700, 8th century 701-800, 9th century 801-900 10th century 901-1000, 11th century 1001-1100, 12th century 1101-1200, 13th century 1201-1300, 14th century 1301-1400, 15th century 1401-1500, 16th century 1501-1600, 17th century 1601-1700, 18th century 1701-1800, 19th century 1801-1900, 20th century 1901-2000, 21st century 2001-2100
52nd century
0 - 100 = the 1st century 100 -200 = the 2nd century ...... 1900 - 2000 = the 20th century 2000 - 2100 = he 21st century
5th century
The year 340 BC is classified as the 4th century BC.
d = a - 2bc
a+2bc + d is d= a - 2bc
BC' + BC' = 2BC'
ab-2ac+b^2-2bc
d = a - 2bc
d=a-2bc
Type your answer here... a = 2bc-d add d to both sides a + d = 2bc divide both sides by 2b (a+d)/2b = c
No. 1a and 3d are linear, but 2bc is not. ■
ac + 2ad + 2bc + 4bd = a(c + 2d) + 2b(c + 2d) = (a + 2b)(c + 2d) Now expand to confirm your answer: c(a + 2b) + 2d(a + 2b) = ac + 2bc + 2ad + 4bd ≡ ac + 2ad + 2bc + 4bd
3bc
The method used is usually to isolate the value being solved for on the left hand side of the equation so, when we are told that a = 2bc - d we switch the equation around and get 2bc - d = a Then we add 'd' to each side and get 2bc = a + d Then we divide both sides by '2b' and get c = (a + d) / 2b
2bc + 8b - 3c - 12 is an expression, not an equation or inequality. It cannot, therefore have "an answer".