the unknown 2

What represents the unknown quantity in 93 + = 200 ? => or 117 or 200 or 93..

Find the length of the unknown side, correct to 1 decimal place if necessary. => 19.8 or 18.5 or 17.2 or 19..

Find the length of the unknown side, correct to 1 decimal place if necessary. => 8.2 or 6.4 or 9.5 or 7.8..

Linear equations in two variables - A Linear equation is a first degree algebraic expression with one,two or more variables equated to a constant. Graphically a linear equation with one or two variables is a straight line whereas one with three variable represents a pl..

The measurements in an experiment to approximate an unknown continuous function y = f ( x ) are shown in table. Approximate the integral ∫ 0 1 f ( x ) dx using the Trapezoidal Rule. x 0 0.25 0.5 0.75 1 f ( x ) 1 1.5 2 2.5 3 => 3.5 or 3 or 4 or 2 or 2..

A trigonometric equation is an equation involving the trigonometric functions of unknown angles. Example; sin x = 1/2..

The most obvious piece of information from mass spectra is the molecular weight of the compound. Measurement of an unknown's molecular weight allows us to narrow the possibilities for molecular formula down to only a few choices. A second piece of information provided by the mass spectru..

Linear Equations in One Variable - An equation is an equality connecting some unknowns. The unknowns are represented by "letters" and are called "the variables". If the equation has only one unknown, it is called "an equal in one variable". The word "Linear" means "of ..

Summary Simultaneous Equations - Finding the solution by the method of substitution. Finding the solution by the method of substitution. (i) Coefficients of one of the variables (say x) in the two equations are made equal, by multiplying them with suitable factors. (ii) By addition or sub..

Dimensional analysis has no information on dimensionless constants. If a quantity is dependent on trigonometric or exponential functions, this method cannot be used. In some cases, it is difficult to guess the factors while deriving the relation connecting two or more physical qua..