Answer
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Answer:
y = 3
Step-by-step explanation:
9 - y = 2y
<u>Step 1: Add y to both sides</u>
9 - y + y = 2y + y
9 = 3y
<u>Step 2: Divide both sides by 3</u>
9 / 3 = 3y / 3
3 = y
Answer: y = 3
Answer:
The equation of the circle is
(x + 2)² + (y + 2)² = 9
Centered at (-2, -2), with radius of 3 units.
Step-by-step explanation:
The general equation of a circle is given as
(x - h)² + (y - k)² = r²
Where (h, k) is the center of the circle, and r is the radius.
Looking at the graph, the center is the red dot. It corresponds to -2 on the y-axis, and -2 on the x-axis. So, the center (h, k) is (-2, -2).
The radius is the distance from the center of the circle to the edge of the circle. The red dot is the edge of the circle, there are 3 lines that represent 3 units, so we have a radius of 3 units.
Using these in the general equation, we have
[x - (-2)]² + [y - (-2)]² = 3²
(x + 2)² + (y + 2)² = 9
And this is the equation.
Let
cos x=7/18
x=arc cos (7/18)-----> using a calculator-------> x=67.11°-----> x=1.17 radians
the answer is
x=67.11° or x=1.17 radians
Answer: is C
Step-by-step explanation:
because > means open circle but it closed so its not A)
and its not D because the sign is opposite and
b and c both have the correct sign which shows which
direction the line is moving
so the answer is C because it has 4x and ends at 22 these statement are correct
Hope you understand :)