NO
-2bk2 + 6bk - 2b = -2b(k2 - 3k + 1)
b = 0.2 x 10a = 2aa/(2b) = a/(4a) = 1/4= 25%
Not sure what 2b is but crushed concrete with 1 1/2" rock will cover about 60 square feet. 15 tons ends up being around 12 cubic yards.
5ab(3a - 2b)
Assuming the missing sign is "minus" then you have the difference between two squares. This is solved as (x + y)(x - y). In your example x = 4a and y = 2b so the factorisation is (4a + 2b)(4a - 2b) or more completely: (4)(2a + b)(2a - b).
YES
NO
21
21
In an intermediate maths 2B exam, the pass marks are typically determined by the educational board or institution conducting the exam. The pass marks can vary depending on the difficulty level of the exam and the grading system in place. Generally, a passing grade is considered to be around 35-40% of the total marks, which in this case would be out of 75.
In the 2018 academic year, the pass mark for the Maths 2B course in the second year typically varied by institution, but it was commonly set around 40% to 50%. It's essential to check the specific guidelines from the respective educational institution or examination board for precise details.
21
ganesh
The pass mark for Maths 2B can vary depending on the educational institution or specific course guidelines. Typically, a pass mark is around 50% to 60%, but it’s best to check the syllabus or consult with the instructor for the exact requirement.
The pass mark for the 2B exam in Senior Intermediate varies depending on the examination board or education system. Typically, a pass mark could range from 35% to 50% of total marks to qualify for passing the exam. It's essential to check with the specific board or institution for the exact pass mark requirements.
5
A 6B pencil lead will generally mark darker than a 2B pencil lead. The higher the 'B' number, the softer and darker the lead.