Answer:

Explanation:
Given

Required
Solve:
Take L.C.M of the first two fractions




Collect Like Terms


Solve the expression in bracket





Take LCM


<em>The expression can not be further simplified</em>
The physical, natural and human sciences experienced the same impulse as technique and industry. In physics, experiences were made with light and electricity. In 1903 Ernest Rutherford discovered the radioactive elements and years later he devised a model of the atom. In 1895, Guillermo Róngten discovered X-rays.
In 1905, <u><em>Alberto Einstein</em></u> based on his mathematical studies revolutionized the conception of the cosmos with his Theory of Relativity, starting point of new investigations. This discovery meant a huge advance in science, comparable to those made by Copernicus, Kepler and Newton.
Answer:
For #4, answer C. I'm not certain #3 can be answered with the text provided.
Answer:
During the 1850s, the women's rights movement gathered steam, but lost momentum when the Civil War began. ... In 1869, a new group called the National Woman Suffrage Association was founded by Elizabeth Cady Stanton and Susan B. Anthony. They began to fight for a universal-suffrage amendment to the U.S. Constitution.
Answer:
The navajo celebrates a baby's first laugh.