Answer:
Step-by-step explanation:
Not all operations, only multiplication and division is done on both, numerator and denominator. So that the fraction value doesn't change (like eqivalent fractions)
Answer:

Step-by-step explanation:
This inequality is quite simple to solve.
Just multiply both sides by four and you have your answer:


Hope this helps!
Answer:
are zeroes of given quadratic equation.
Step-by-step explanation:
We have been a quadratic equation:

We need to find the zeroes of quadratic equation
We have a formula to find zeroes of a quadratic equation:

General form of quadratic equation is 
On comparing general equation with b given equation we get
a=2,b=-10,c=-3
On substituting the values in formula we get


Now substituting D in
we get




Therefore, 
Either it is C or D or E.
Answer: 7.5
Step-by-step explanation: It's negative, so the opposite would be positive.