Answer:
<h3>Rational number</h3>
Step-by-step explanation:
A rational number are number that can be written as the ratio of two integers. Integers are whole numbers and they can be positive or negative including zero.
Looking at the value 5.371, we can write it in fraction form as shown;
5.371 = 5371/1000
Since 5.371 is equivalent to 5371/1000 and <em>5371/1000 is a ratio of two integers 5371 and 1000 therefore we can conclude that 5.731 is a rational number</em>
<u>Note that decimal numbers are not integers and are not whole numbers.</u>
Given:
The table of values.
To find:
The least-squares regression line for the data set in the table by using the desmos graphing calculator.
Solution:
The general form of least-squares regression line is:
...(i)
Where, m is the slope and b is the y-intercept.
By using the desmos graphing calculator, we get

Substitute these values in (i).


Therefore, the correct option is A.
Answer:You cannot take the square root of a negative number
Step-by-step explanation:
Answer:
The measure of angle BCD is
Step-by-step explanation:
step 1
Find the value of x
we know that
-----> form a straight line
substitute the values
step 2
Find the measure of angle BCD
substitute the value of x