Find the slope of each Altitude:
D(2,4) E(-3,-6) F(4,7)

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6