Solve the problem.Find an equation in general form for the line graphed on a graphing utility. 
A. y = - 
x - 1
B. x + 2y = -2
C. 2x + y = -1
D. y = -2x - 1
Answer: B
Mathematics
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Solve.A certain radioactive isotope has a half-life of approximately 1450 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 40% of that amount?
A. 1877 years B. 1069 years C. 870 years D. 1917 years
Mathematics
Eliminate the parameter of the pair of parametric equations.x = sec t, y = tan t
A. x2 - y2 = 1 B. y = x - 1 C. y2 - x2 = 1 D. y = x + 1
Mathematics
Solve.If two less than a number is fourteen, what is the number?
A. 12 B. 16 C. -12 D. 2
Mathematics
Convert. When necessary, round the answer to two decimal places.16.75 gallons = quarts
A. 67 B. 134 C. 32 D. 64
Mathematics