Find an equation in the form y = Acos x or y = Asin x that represents the given graph.
A. y = -3sin x
B. y = -3cos x
C. y = 3cos x
D. y = 3sin x
Answer: A
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State the number of significant digits and the implied precision of the given number.50,000.010
A. 3 significant digits, precise to the nearest thousandth B. 8 significant digits, precise to the nearest thousandth C. 2 significant digits, precise to the nearest hundredth D. 7 significant digits, precise to the nearest hundredth
Use the graph of a power function and transformations to sketch the graph of the polynomial function.f(x) = - 
x5
A. 
B. 
C. 
D. 
Rationalize the denominator.
A. 10
B. 10
C. 1
D. 
Solve.Suppose economists use as a model of a country's economy the equation C = 0.7434D + 5.9029where C represents the consumption of products in billions of dollars and D represents disposable income in billions of dollars. Solve the equation for D and use the result to determine the disposable income D if the consumption C is $7.80 billion. Round your answer to the nearest tenth of a billion.
A. $4.6 billion B. $2.4 billion C. $2.6 billion D. $11.7 billion