Find all real numbers that satisfy the equation.sin x = - 
A. 
B. 
C. 
D. 
Answer: A
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Find the limit.
A. 0 B. -? C. -1 D. ?
Solve. Write the solution set using set-builder notation and using interval notation. Graph the solution set. 0.6x + 15 + x > 2x + 19 - 0.5x
A. {x
x < -4}; (-?, -4)
B. {x
x < 40}; (-?, 40)
C. {x
x > 40}; (40, ?)
D. {x
x ? -4}; [-4, ?)
Solve the problem.A consumer group in one city compares the costs of goods and services in that city over various years, and uses 1970 as a base. The same goods and services that cost $100 in 1970 cost $42 in 1941. Assuming the exponential-decay model, find the value of k, and write the equation. Round the value of k to the nearest thousandth. Let t be the number of years before 1970.
A. P(t) = P0e-0.035t B. P(t) = P0e-0.032t C. P(t) = P0e-0.03t D. P(t) = P0e-0.028t
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.32x + 4.29 B. y = 0.32x + 2.57 C. y = 0.30x + 4.29 D. y = 0.30x + 2.57