Solve the problem.A chemical solution contains 1% salt. How much salt is in 2.5 mL of solution?
A. 0.025 mL
B. 0.25 mL
C. 25 mL
D. 250 mL
Answer: A
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Find the curvature of the space curve.r(t) = -8i + (t + 4)j +(ln(cos t) + 8)k
A. ? = csc t B. ? = sin t C. ? = sec t D. ? = cos t
Use the compound interest formula to compute the future value of the investment. Round to the nearest cent.$3000 at 2.5% compounded daily for 9 years (assume 360 days per year)
A. $3756.94 B. $3001.88 C. $3746.59 D. $3192.79
Find a vector function that represents the curve of intersection of the two surfaces: the top half of the ellipsoid x²+7y²+7z²=49 and the parabolic cylinder y=x².
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A farm co-op has 6,008 acres available to plant with corn and soybeans. Each acre of corn requires 9 gallons of fertilizer/herbicide and 0.75 hour of labor to harvest. Each acre of soybeans requires 3 gallons of fertilizer/herbicide and 1hour of labor to harvest. The co-op has available at most 40,500 gallons of fertilizer/herbicide and at most 5,250 hours of labor for harvesting. Find the maximum profit if the profits per acre are $70 for corn and $55 for soybeans. Round your answer to the nearest cent if necessary. ?
A. $386,630.00 B. $288,750.00 C. $375,080.00 D. $247,500.00 E. $394,169.00