calculate the probability of choosing an activity at random that burns more than 400 calories per hour.

a . 3 out of 6

b. 6 out of 3

c. 6 out of 9

d. 3 out of 9

activity
calories burned per hour
basketball
600
bike riding
415
doing homework
110
jumping rope
678
running
802
swimming
600
tennis
450
volleyball
350
walking
260

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

How do you find the circumfrance of a circle?

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?