Henry recorded the number of miles he biked each day for a week. his miles were 25, 40, 35, 25, 40, 60 and 75. what is the standard deviation of the miles henry biked to the nearest tenth

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.