Find the slope of the line.2x - 5y = -14
A. - 
B. 
C. - 
D. 
Answer: B
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Find the reference angle for ?. ? = -81°
A. 81° B. 171° C. -81° D. 126°
Evaluate the expression.
?
?
?
A. 76 B. 86 C. 1 D. 85 E. -9
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 547 days B. 1512 days C. 911 days D. 707 days
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 0.94 millimeters at a distance of 100 kilometers from its epicenter? Round the answer to four decimal places.
A. -3.0269 B. -0.0269 C. 0.9731 D. 2.9731