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granniejo
14.12.2020 •
Mathematics
Which expressions represent the model shown on the number line?
Choose ALL the correct answers.
-9 +4
9+(-4)
9-4 or -9-4
Solved
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Ответ:
if you had a number it would be -9 + 4 = -13
Step-by-step explanation:
- + a postive = - negative
- + - = +
+ with a postive = postive
+ + - = -
Thanks hopes it helps
Ответ:
Step-by-step explanation:
we know that
The distance from the center to any point on the circle is equal to the radius of the circle
step 1
Find the radius of the circle
The formula to calculate the distance between two points is equal to
we have
(-5, -3) and (-2, 1)
substitute
step 2
Find the equation of the circle
The equation of the circle in center radius form is equal to
where
(h,k) is the center of the circle
r is the radius of the circle
we have
substitute