Find the indicated probability.A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved
If an accident is selected at random, what is the probability that it involved alcohol or a single car? Give your answer as a fraction.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics
Write in terms of the cofunction of a complementary angle.sec 12° 18'
A. csc 78° 18' B. cos 167° 42' C. cos 77° 42' D. csc 77° 42'
Mathematics
Find the foci of the given hyperbola.
- 
= 1
A. (0, - 
) , (0, 
)
B. (-11, 0), (11, 0)
C. (- 
, 0) , (
, 0)
D. (0, -5), (0, 5)
Mathematics
Provide an appropriate response.The height h(t) of a rock dropped off of a 200 foot building is given by h(t) = 200 - 16t2, where t is the time measured in seconds. Find 
, the acceleration of the rock, when t = 3.
What will be an ideal response?
Mathematics