Answer:

Step-by-step explanation:
Given the equation of the circle: 
We wish to express it in a Standard form:
We begin by re-arranging:

Next, divide the coefficient of x by 2, square it and add it to both sides.
Do the same for y.

Next, we factorize

This is the standard form.
Answer:
First option
Step-by-step explanation:
49+59+72=180
and a triangle needs 180 degrees total
Answer:
2.
Step-by-step explanation:
The line of best fit is a line through scatter plot of data points that best expresses the relationship between those points.
(hope this helps :P)
Answer:
1.368
Step-by-step explanation: 1.14x1.2=1.368
Answer:
The x-intercept is 4
Step-by-step explanation:
We are given;
The slope of a line as -3/4
y-intercept is 3
We are supposed to determine the x-intercept;
We need to know that;
The slope of a line is given by the ratio of the change in y to the change in x
The coordinates of y-intercept are (0, 3)
Taking the x-intercept as a, then the coordinates of x-intercept is (a, 0)
But;
slope = Δ in y ÷ Δ in x
Therefore;

Solving for a

Therefore, the x-intercept is 4