Estimate the probability of an event (empirical probability). A new drug is being tested that is supposed to lower cholesterol. This drug was given to 150 people. After the test period ended, 106 people had lower cholesterol, 8 people had higher cholesterol, and 36 people had no change in their cholesterol. Estimate the probability that after testing this drug a person's cholesterol will be lower.
A. 
B. 
C. 
D. 
Answer: C
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Provide an appropriate response.Find the direction in which the function is increasing most rapidly at the point P0.f(x, y) = xey - ln(x), P0(-4, 0)
A. 
i - 
j
B. 
i
C. 
i - 
j
D. 
i + 
j
Convert between English and Metric System of Units.
6.6 yd = 
m (Round to the nearest tenth.)
A. 6.0 B. 167.6 C. 50.3 D. 259.8
A geometric sequence is given. Find the common ratio and write out the first four terms.{sn} = 
A. an = 6 ? (2)n-1
r = 2; s1 = 6, s2 = 12, s3 = 24, s4 = 48
B. an = 
(6)n-1
r = 
; s1 = 6, s2 = 12, s3 = 24, s4 = 48
C. an = 6 
n-1
r = 
; s1 = 6, s2 = 3, s3 = 
, s4 = 
D. an = 6 
n-1
r = 
; s1 = 6, s2 = 
, s3 = 
, s4 = 
A car is traveling on a curve that forms a circular arc. The force F needed to keep the car from skidding is jointly proportional to the weight w of the car and the square of its speed s, and is inversely proportional to the radius r of the curve. A car weighing 2,500 lbs travels around a curve at 70 mi/h. The next car to round this curve weighs 4,900 lbs and requires the same force as the first car to keep from skidding. How fast is the second car traveling?
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