Solve the problem.The concentration of a certain gas molecule in the atmosphere serves as an indicator of industrial air pollution. The data in the following table show the relationship of the estimated concentration of the molecule in the atmosphere, in parts per billion (ppb), to the year.
Take 1985 as year zero, and determine the linear, quadratic, or cubic function that best fits the data.
A. f(x) = -0.003x2 + 0.12x + 2.19
B. f(x) = -0.002x2 + 0.12x + 2.19
C. f(x) = 0.00001x3 - 0.003x2 + 0.14x + 2.16
D. f(x) = 0.002x + 2.90
Answer: C
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For the given functions f(x) and g(x), perform the indicated operation.f(x) = (5x5 - 18x2 + 2), g(x) = (7x5 + 6x2 - 20)Find f(x) - g(x).
A. -2x5 - 24x2 - 18 B. -2x5 - 11x2 - 18 C. -2x5 - 24x2 + 22 D. -4x7
Use the trapezoidal rule to approximate the value of the integral defined by the given set of points.
A. 5.33 B. 5.49 C. 5.36 D. 5.27
Perform the conversion.16 L = ____ mL
A. 1600 B. 0.16 C. 0.016 D. 16,000
Provide an appropriate response.What formula best describes the calculation of present value for an amount compounded annually?
A. PV = P × R × T B. maturity value divided by 1 + interest rate C. maturity value - compound interest D. present value divided by 1 + interest rate