Awheel has 11 spokes evenly distributed around the rim of the wheel. what is the measure, in radians, of the central angle formed by adjacent pairs of spokes?

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.