Answer
The correct answer should be 2/3, Nicholas should have divided the numerator and the denominator by the same greatest common factor.
Step-by-step explanation:
When simplifying fractions, you need to look at the value of the numerator (top number) and denominator (bottom number) and compare their factors. Factors are the number that we multiply to get that number. To simplify a fraction to lowest terms, you need to find the greatest common factor of both numbers and divide each number by the same factor. 20 has the following factors: 1, 2, 4, 5, 10, 20. 30 has the following factors: 1, 2, 3, 5, 6, 10, 15, 30. Although both 20 and 30 have the factors 1, 2, 5 and 10 in common, the greatest common factor is 10, so we divide both 20 and 30 by 10 to get 2/3.
Answer:
1. 234.57
2.150.79
3. too lazy... lol sorry
Step-by-step explanation:
Second moment of area about an axis along any diameter in the plane of the cross section (i.e. x-x, y-y) is each equal to (1/4)pi r^4.
The second moment of area about the zz-axis (along the axis of the cylinder) is the sum of the two, namely (1/2)pi r^4.
The derivation is by integration of the following:
int int y^2 dA
over the area of the cross section, and can be found in any book on mechanics of materials.
Can you take the picture closer?
Answer:
6.0
Step-by-step explanation:
practice many times
