Question

the value of (-1/2 + 3/4) ÷ (1/4 - 3/5)​

Answer 1

Answer:

$( \frac{ - 1}{2} + \frac{3}{4} ) \div ( \frac{1}{4} - \frac{3}{5} ) \\ = ( \frac{ - 2 + 3}{4} ) \div ( \frac{5 - 12}{20} ) \\ = \frac{1}{4} \div \frac{ - 7}{20} \\ = \frac{1}{_{1 \: \: }\cancel{4}} \times \frac{ \cancel{ 20}_{ \: \: 5}}{ - 7} \\ \boxed{ = \underline{ \underline{ \frac{5}{ - 7} }}}$

Answer 2

In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate.