The argument has a true conclusion. Identify the argument as valid or invalid.Rational numbers are real numbers.Integers are rational numbers. Integers are real numbers.
A. Valid
B. Invalid
Answer: A
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Find the surface area or volume.The region between the curve y = sinx, 0 ? x ? 2.1, and the x-axis is revolved about the x-axis to generate a solid. Use a table of integrals to find, to two decimal places, the volume of the solid generated.
A. 3.98 B. 4.06 C. 4.21 D. 3.80
Compute the definite integral as the limit of Riemann sums.
, a < b
A. y2 - x2
B. 64
C. 16(y - x)
D. 4
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = 
A. origin B. y-axis C. x-axis D. x-axis, y-axis, origin E. none
Use the table to solve the problem. Round to the nearest cent.
Jenny Sherrer has $17,000 to invest and believes that she will earn 8% compounded semiannually. Find the compound amounts if she invests for 4 years and for 7 years. Then find the additional amount earned due to the longer period.
A. $2483.19 B. $6172.87 C. $18,466.42 D. $9550.94