Which statement is true about two angles that are complementary? the angles share a common ray. the sum of the measures of the two angles is 90°. the angles are opposite each other. the sum of the measures of the two angles is 180°

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m