23-09-2019
Mathematics

contestada

A circle has center (5,-4) and radius 8. Which gives the equation for the circle?

Respuesta :

harpazo harpazo

23-09-2019

Use (x - h)^2 + (x - k)^2 = r^2.

Note: (h, k) is the center of the circle.

(h, k) = (5, -4). This means h = 5 and k = -4.

Let r = radius

We now plug and chug.

(x - 5)^2 + (y -(-4))^2 = (8)^2

(x - 5)^2 + (y + 4)^2 = 64

Done.

Answer Link

Otras preguntas

what characteristics did roosevelt have that made him popular with americans?

fossil of pithecanthropus was first discovered in

For the following geometric sequence, find the explicit formula. {1, -3, 9, ...}

Find the value of Q in the following system so that the solution to the system is (2,3) x-2y=-4 3x+5y=Q

where do the respiratory and circulatory systems meet?

For f (x) = 3x +1 and g(x) = x^2-6, find (g/f)(x)

Write a expression for this

lydia graphed triangle LMN at the coordinates L (0, 0), M(2, 2) and N(2, -1). She thinks triangle LMN is a right triangle. Is lydias assertion correct?

Recipe ingredients remain in a constant ratio no matter how many servings are prepared. Which table shows a possible ratio table for ingredients X and Y for th

Positively charged particles within the nucleus of an atom are _________. A. electrons B. protons C. neutrons