Neil is on a scuba diving expedition. The graph shows Neil’s approximate elevation as he jumps off the dive boat. The variable E is his elevation in feet with respect to the water level, and t is the time in seconds. Which equation best models the given graph?

A.
E = -7t + 28
B.
E = -7t2 + 15t + 28
C.
E = -7t2 + 15
D.
E = 7t2 + 15t − 22

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Give all possible names for the line shown.calculation tip: lines can be written with either point first.