40. A scientist dropped an object from a height of 200
feet. She recorded the height of the object in 0.5
second intervals. Based on a quadratic model, which
best approximates the height at 3 seconds?
Height (ft)
200
A. 52 feet
Time (s)
0.0
0.5
1.0
B. 55 feet
195
C. 65 feet
185
1.5
165
D. 80 feet
2.0
135
2.5
100
41
2+2=?

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?