which is a solution to the equation 6x + y = 4

= 0.05608 = 0.0561 The number of significant figures in the term 3.24 is 3, therefore the result should have 3 significant figures. Therefore, the correct answer is 0.0561. The number after zero is 8 and therefore it is rounded off to one. = 0.2615 x 10 - 4 = 0.3 x..

O 2 : SO 2 S : O 2 1 : 1 32 g : 1 vol. 22.4 : x y : 22.4 litres or 1 mole x = 22.4 litres y = 32 g Volume of SO 2 produced Mass of uncombined sulphur = 22.4 litres = 40 - 32 = 8..

According to the problem Integrating, we have y = x 2 c This is the family of equations with parameter. The family of curves is represented by y = x 2 c, since one of these curves passes through (3,- 4), we have 4..

Since the tangent to the given curve is parallel to the line 4x - 2y + 5 = 0 Slope of the tangent = Slope of the given line ..

The electron revolving around the nucleus in a circular orbit is equivalent to a circular conductor carrying current. The current I, by definition I = Charge / Time = eV = 1.6 x 10 - 1 9 x 6.8 x 10 1 5 A = 1.1 x 10 - 3 A The magnetic..

The distance between the central and the 5 t h bright fringe = 1.5cm Therefore b = 0.3 = 3 x 10 -3 m. Also given d = 0.3 mm = 3 x 10 -4 m, D = 1.5 m = 6 x 10 - 7 m = 600 ..

(i) 12.6 x 11.2 = 141.12 Correct answer = 141 (up to three significant figures) (ii) 172.8/15 = 11.52 Correct answer = 12 (up to two significant figur..

Symmetry (a) By replacing y by -y, the equation (1) is altered, therefore the curve is not symmetrical about x-axis. (b) By replacing x by -x, the equation of the curve is altered, therefore the curve is not symmetrical about ..

The C-Cl bond is polar because the chlorine atom being more electronegative pulls the shared electron pair towards itself. In CCl 4 , there are four C-Cl bonds. Since these polar bonds are symmetrically arranged, the polarities of individual bonds cancel each other resulting in..

In diamond, all the four valencies of each carbon atom are satisfied by bonding to other carbon atoms through regular covalent bonds. The electrons are held tightly between the nuclei, and there are no mobile electrons. Thus diamond structure is a closely packed structure and is extremel..