Solve the following system by any appropriate method. If there is no real number solution, so state.x2 + 2y2 = 8x2 - y2 = 1
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. no real solution
Answer: C
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Find the indicated probability.In a poll of registered voters shortly before a mayoral election, people were asked which candidate they were planning to vote for. The results are shown in the table. 
Find the empirical probability that a randomly selected registered voter is planning to vote for Anderson. Round your answer to the nearest thousandth when necessary.
A. 250 B. 0.217 C. 0.138 D. 0.004
Classify the angle as acute, right, obtuse, or straight.
A. Acute B. Right C. Obtuse D. Straight
The graph of a polar equation is given. Select the polar equation for the graph. 
A. r sin ? = -1 B. r = -2 cos ? C. r = -1 D. r = -2 sin ?
Solve the problem.A plane suddenly experiences turbulence while in flight. At this point the change in its altitude, in feet, is represented by the following function of time:F(t) = 
.Assuming that the turbulence first hits at time t = 0, what is the maximum relative drop the plane will experience due to turbulence? (Round the result to the nearest hundredth.)
A. 16.80 ft B. 0.97 ft C. 8.20 ft D. 0.26 ft