Using the following equation, find the center and radius of the circle. you must show all work and calculations to receive credit. x2 − 4x + y2 + 8y = −4 make answer in 1 or more complete sentences

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

The triangles are similar. what is the value of x? show your work.

Which equation matches the graph shown ?