2 important questions

The line graph represents the number of cars (in millions) imported between the years 1996 and 2000. Find the ratio of the maximum imports of cars to the minimum imports of cars. => 5 : 2 or 1 : 5 or 2 : 5 or 5 : 1..

The U.S. imported 600 million tons of cotton in the year 2000 and the imports fell to 500 million tons in the year 2001. Find the percent of decrease in the imports of cotton. => 16 2 3 or 16 3 4 or 16 1 3 or None of the above..

a) Prove cot 2 q + 1 = cosec 2 q . We know that cos 2 q + sin 2 q = 1 ...(1) also Divide (1) by sin 2 q on both sides (sin q 0), then b) Prove that 1 + tan 2 q = sec 2 q . ..

From the above observation, we find (i) sin A = cos B where A + B = 90 o \ Sine of an angle = Cosine of its complement sin A = cos (90 - A) o sin 40 o = cos (90 - 40) o = cos 50 o (ii) = tan A (iii) By Pythagoras theorem a 2 + b 2 = c 2..

Given a, b, c and d are non-zero real numbers, we can deduce other proportions by simple Algebra. These results are often referred by the names mentioned along each of the properties obtained. (1) If then bc = ad This property is known as INVERTENDO. (2) If , then ad = bc This property is..

On an important social issue, Democrats and Republicans in the House cast votes as indicated in the table. In favor Opposed Undecided Democrat 86 78 37 Republican 136 70 27 At α = 0.01, find the chi-square test value and test the hypotheses that there is no difference between the ..

The table shows the production, imports and consumption of electricity of a particular State. Pick an appropriate bar graph that represents the statistics in the table. Year Electricity production Electricity imports Consumption 1985 70 70 65 1990 75 75 80 1995 80 70 70 2000 70 ..

- The food passively sinks into the body on contact. ..

Many carbon compounds find applications in almost all aspects of our daily life as we have seen earlier. In this chapter two very important organic compounds ethanol and ethanoic acid are discusse..

Introduction - Sodium belongs to Group I in the periodic table. This group is otherwise known as the alkali metals group. Since the atomic number of sodium is 11, its electronic configuration is 2,8,1. Sodium easily loses the lone electron to attain the stable configuration of neon. There..