answer to 2 x 1 2 x 12

Calculate the trapezoidal approximation T n to the integral ∫ 2 12 x ( x + 1) 2 dx . Use n = 5 subintervals and round the answer to two decimal places. => 5560 or 6200 or 6550 or 6505..

The half-life of 92 U 238 against alpha decay is 4.5 x 109 years. How many disintegrations per second occur in 1 g of 92 U 238 ? Suggested solution: Again, since one k mole of any isotope contains Avogadro's number of atoms, there fore 1 g of..

Two hundred five less than a number is greater than or equal to one hundred twelve. Which of the choices can be the number? => 308 or 318 or 315 or 316..

A Karate expert strikes a board of mass 0.14 kg and breaks it, with his fist of mass 0.70 kg. He then does the same to a 3.2 kg concrete block. The spring constant 'k' for bending are, 4.1 x 10 4 N/m for the board and 2.6 x 10 6 N/m for the block. B..

A doctor wishes to mix together two kinds of food, X and Y, in such a way that the mixture contains at least 10 units of vitamin A, 12 units of vitamin B and 8 units of vitamin C. The vitamin contents of one pound of food are shown. One pound of foo..

Let the line pass through A(x 1 , y 1 ) and B(x 2 , y 2 ), the two given point..

If Z 1 = a + ib and Z 2 = x + iy, then we define their sum as Z 1 + Z 2 = (a + ib) + (x + iy) = (a + x) + i(b + y) which is a complex numbe..

Let y = u + v, where u and v are differentiable functions of x. or (u + v)' = u' + ..

Let A and B be two non-empty sets, then the cartesian product of A and B denoted by A x B = {(a, b) | a A, b B..