Algebraically:
((a+b) / 2) / ((a+b) / (2ab)) = 2ab(a + b) / 2(a + b) = (2a2b + 2ab2) / (2a + 2b) = ab
As an example, let a = 2 and b = 3 then:
i) (a + b) / 2 = (2 + 3) / 2 = 5/2
ii) (a + b) / (2 * a * b) = (2 + 3) / (2 * 2 * 3) = 5 / 12
Therefore i) is ab times larger than ii). (for these specific example numbers it will be 6 times larger)
The answer is 90. Dividing in half is also same as multiplying it by 2. Then you add 10, you'll get 90.
You add the coefficients, i.e., the numbers. For example, 3ab + 2ab = 5ab.
117
To find the polynomial degree you have only to add the exponents of all of the different components of the polynomial. In your case, you would add 1 and 5 from 4ab5 to get 6, 1 and 1 from 2ab to get 2, and 4 and 3 from 3a4b3 to get 7. Since the degree of the third component is the highest, that is you're answer.
well if its a dividing you subtracting, multiplying you add
add by adding
Consider a square with a smaller square inside of it, where each of the corners of the smaller square touch the midpoints of the sides of the larger square. ( I would suggest drawing a picture of this. I tried to post one, but I can't for WikiAnswers) There are 4 congruent right triangles formed from this picture. There are two legs to these triangles, of length a and b. The hypotenuse of each of these triangles will be called c. Let us add up one side of the big square. This quantity is (a+b). Let us square this, so the area of the big square is (a+b)2. Thus the area of the big square is a2 + 2ab + b2. We can now subtract the area of the smaller circle which is c2. So we now have a2 + 2ab + b2-c2. We now need to subtract the 4 congruent triangles. The area of a triangle is one half the base times height. In this case, one triangle is .5ab. Multiply this by 4, and we have 2ab. Now we have the entire expression a2 + 2ab + b2-c2 - 2ab = 0, since we have taken the full area of the square, and subtracted out all of the individual parts. The 2ab and the -2ab add up to zero, so we now have a2 + b2-c2 = 0. We can add the -c2 to the other side, thus giving us a2 + b2 = c2 This is one of the many ways to prove the Pythagorean Theorem.
add a zero to the end (only if it'safter the decimal) and continue dividing
add half the denominator to the numerator
When you divide 30 by half, you are essentially dividing 30 by 0.5, which equals 60. Adding 10 to 60 gives you a final result of 70.
One half is five tenths. Add three tenths, gives eight tenths. Simplify that by dividing the two values by their highest common factor, which is 2. That gives you four fifths.
add a decimal