Find the expected value of the probability density function to the nearest hundredth.f(x) = 3x-4; [1, ?)
A. 1.75
B. 1.00
C. 1.50
D. 1.25
Answer: C
Mathematics
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Solve the problem.The table lists the distance travelled by a falling object, where t is the elapsed time in seconds and d is the distance in meters.
If the distance is modeled by d(t) = at2, find the distance travelled after 6 seconds.
A. 576 meters B. 144 meters C. 864.36 meters D. 176.4 meters
Mathematics
Evaluate.Find (f - g)(-4) when f(x) = 3x2 + 1 and g(x) = x + 5.
A. 40 B. 48 C. -45 D. 58
Mathematics
Solve for the specified variable.S = 
for r
A. r = 
B. r = 
- 1
C. r = 
D. r = S - a
Mathematics
Find the sum.194 + 76 + 6 + 4
A. 260 B. 290 C. 270 D. 280
Mathematics