The graph of the equation below is a circle. what is the length of the radius of
the circle?
(x + 5)2 + (y + 7)2 = 212
o a. 441
o b. 42
o c. 10.5
o d. 21

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression