Which equation represents a circle that contains the point (–2, 8) and has a center at (4, 0)?
distance formula: startroot (x 2 minus x 1) squared + (y 2 minus y 1) squared endroot

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.