The equation of a circle:

(h, k) - a coordinates of the center
r - a radius
A diameter d = 2r
We have

Answer: d = 2 · 10 = 20
Answer:

Step-by-step explanation:








Answer:
D
Step-by-step explanation:
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The slope-intercept equation for a straight line as - 3 x + 10.
Slope refers to a number that describes both the direction and the steepness of the line.
The slope-intercept equation for a straight line is given by:
y = m x + b;
where m = the slope and b = the y-intercept.
Here, we are given that:
m = slope = -3
y- intercept = b = 10
Put it in the equation y = m x + b, we get that:
y = (-3) x + 10
y = -3 x + 10.
Therefore, we get the slope-intercept equation for a straight line as - 3 x + 10.
Learn more about slopes here:
brainly.com/question/3493733
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