Write the expression in interval notation. Graph the interval.-10 < x
A. (-10, ?]
B. (-10, ?)
C. [-?, -10)
D. (-?, -10)
Answer: B
Mathematics
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Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)E = mc2 for c
A. c = Em
B. c = 
C. c = ± 
D. c = ± 
Mathematics
Solve the equation symbolically.
+ 
= 4
A. 3, 
B. No solution
C. -3
D. 3
Mathematics
Solve the formula for the indicated variable.I = Prt
for t
A. t = 
B. t = 
C. t = P - Ir
D. t = 
Mathematics
Solve the problem.A company's total cost, in millions of dollars, is given by C(t) = 140 - 30e-t where t = time in years. Find the marginal cost when t = 6.
A. 0.07 million dollars per year B. 0.45 million dollars per year C. 0.16 million dollars per year D. 0.35 million dollars per year
Mathematics