Algebra Answers

1) If (n²+1)t=u + v and (n+1/n)t= u-v, prove that u/v = n+1/n-1 and find t in terms of u,v only

2) For what values of c is x=-3 a root of the equation, x²+(c-1)x-2=c²? What are then the other values of x?

--------------- show the solution and solve the problem below

Calculate 66.666*33.333 and give the 4 significant digit answer.

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1. Calculate 66.666*33.333 and give the 4 significant digit answer.

Hello. Please solve the following below. Show solution.

1.      How many significant digits in 0.01850 – 10³?

2.      How many significant digits in 219900?

3.Calculate 66.666*33.333 and give the 4 significant digit answer.

A box of Shredded Wheat weighs 0.35 kg and a box of Weetabix weighs 9/25 kg? Which box is heavier? Show your working. 

90 men and 60 women were asked if they had watched the latest ‘Expendables’ movie. Altogether 3/5 of the people said Yes. 3/10 of the women said Yes. What percentage of the men said No?