The graph of
is shown in the graph below.
The graph is of ∩-shape when the constant
of the quadratic equation
is negative
In an ecological study, the sampling mean proportion is 0.28 and the sample size is 50. a) What is the margin of error with a confidence level of 95%?
The solution to a system of two linear equations is (4, -3). One equation has a slope of 4. The slope of the other line is the negative reciprocal of the slope of the first. The system described above is represented by the following equations: y --X-2 y - 4x - 19 Please select the best answer from the choices provided
Answer: It can always be written as a fraction.
Step-by-step explanation:
1. By definition, a rational numbers has the following form: , where and are integers and .
2. Therefore, when you add two rational numbers, the result it can always be written as a fraction.
3. An example is shown below:
The result is a fraction whose numerator and denominator are integers.