# Math

Find an expression for the function. Top half of the circle: x^2+(y-2)^2=4.

1. 👍
2. 👎
3. 👁
1. (y-2)^2 = 4 - x^2
y-2 = sqrt(4-x^2)
y = sqrt(4-x^2) + 2

1. 👍
2. 👎

## Similar Questions

m

2. ### GEOMETRY INSCRIBED ANGLES MULTIPLE CHOICE QUESTION

segment BC is tangent to circle A at B and to circle D at C. (Not drawn to scale) AB=10 BC=25 and DC=3. Find AD to the nearest tenth. Hint: Draw an auxiliary line from D to segment BA. {There are two circles, the larger one has

3. ### circles

a. To find X, you will need to add the arc measures together and set this expression equal to the total degrees of a circle and then solve for X. Must show all work. b. Here are the steps to take (show all work) 1. Plug your

4. ### apex geometry

Hannah constructed two similar circles as seen in the image below. If the arc length of the larger circle is , which of the following would be true? A. The arc length of the smaller circle is proportional to the radius of the

1. ### Functions - math

The function f is such that f(x) = 2x + 3 for x ≥ 0. The function g is such that g(x)= ax^2 + b for x ≤ q, where a, b and q are constants. The function fg is such that fg(x)= 6x^2 − 21 for x ≤ q. i)Find the values of a

2. ### ALGEBRA

Find the area of an irregular shape.Round to the nearest tenth. The picture looks like the post office mail box. The top half radius is 5cm and the lower half is 8cm a 90.2 cm^2 b 241 cm^2 c 65.1 cm^2***** d 72.3 cm^2 Please help

3. ### math

Find an expression for the function whose graph is the bottom half of the parabola x + (y - 9)2 = 0. y=? some help would be appreciated!

4. ### Pre Calc

use properties of the trigonometric function to find the exact value of each expression. Do no use a calculator. sec ( - pi/18) * cos (37 pi)/18 I do not see how to do this problem. Every time I do it out I get a reference angle

1. ### math

Let the equation of a circle be x^2+y^2-14x+8y+56 a. Find the standard form of the circle b. Find the center of the circle c. Find the radius of the circle

2. ### Physics

A boy is swing a toy on a piece of string in a vertical circle. The toy has a mass of 150g and the radius of the circle is 0.8m. An othe boy swings the toy with a linear velocity of 3.5m/s. Workout the tension in the string at the

3. ### circles and arcs

YOU have a circle with a traingle inside. P being the top of triangle and Q and R, are on the sides, PQ= (8x-10) and PR=(6x) and the bottom QR= (10x+10) SAYS: a)find X b)is the triangle equilateral, isosceles, or scalene? explain.

4. ### Maths

Two concentric circles are such that one circle has half the radius of the other. If a point is chosen at random inside the larger circle, the probability that it also lands outside the smaller circle is?