Question
Maths
Nov. 15, 2021, 7:59 a.m.
Answer
The perimeter of a rectangle is 120 cm. And it length. Is 40 cm. Find the area of the rectangle
P is an aqueous solution of acid and Q is an aqueous solution of base. When these two are
diluted separately, then
(a) pH of P increases while that of Q decreases till neutralisation.
(b) pH of P decreases while that of Q increases till neutralisation.
(C) pH of both P and Q decrease.
(d) pH of both P and Q increase.
diluted separately, then
(a) pH of P increases while that of Q decreases till neutralisation.
(b) pH of P decreases while that of Q increases till neutralisation.
(C) pH of both P and Q decrease.
(d) pH of both P and Q increase.
Maths
Nov. 14, 2021, 8:16 p.m.
Answer
Solve system of linear equation ,using matrix method: 3x -2y +3z = 8;
2x +y -z = 1;
4x -3y +2z = 4;
2x +y -z = 1;
4x -3y +2z = 4;
The difference of any 3_digit number and the number formed by reversing the digit of a 3 digit number is always divisible by
