Find the first term and the common difference.$7.13, $9.73, $12.33, $14.93, . . .
A. a1 = $7.13, d = $7.80
B. a1 = $7.13, d = $2.60
C. a1 = $7.13, d = $1.95
D. a1 = $7.13, d = $7.13
Answer: B
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 4 and x = 4. The cross sections perpendicular to the x-axis are circular disks whose diameters run from the parabola y = x2 to the parabola y = 32 - x2.
A. 
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B. 
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C. 
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D. 
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Factor completely.2mn3 - 6mn + 8mn2 - 24m
A. 2(mn2 - 3)(n + 4m) B. 2m(n2 - 3)(n + 4) C. 2(n2 + 3)(mn - 4) D. 2m(n2 + 4)(n - 3)
Use a scientific calculator to approximate the common logarithm. Round to four decimal places.log 196
A. 2.2945 B. 5.2781 C. 2.2923 D. 2.2900
Solve the equation by expressing each side as a power of the same base and then equating exponents.3x = 27
A. {9} B. {4} C. {3} D. {2}