The grade that a student scores on her math test is inversely proportional to the number of hours a week that she plays video games. she scores a 73.6 on a test when she plays 10 hours of video games per week. if this relationship continues at the same rate, what score can she expect on her math test if she plays video games for only 8 hours a week?

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.