Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis.
a. 
Mathematics
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Factor the GCF from the polynomial.s(t2 + 3) - 2(t2 + 3)
A. (t2 + 3)(s - 2) B. -2s(t2 + 3) C. (st2 + 3s) - (2t2 + 6) D. (t2 + 3)(s + 2)
Mathematics
Provide an appropriate response.The solution of x2 + 2x - 15 ? 0 is
A. -5 ? x ? 3. B. x ? 3. C. x ? -5. D. x ? -5, x ? 3. E. x ? -5.
Mathematics
Solve the problem.Joan can mow a 3-acre field in 4 hours. How long would it take her to mow a 2.6-acre field? Round to the nearest tenth.
A. 0.9 hr B. 6.5 hr C. 3.5 hr D. 5.5 hr
Mathematics
Factor. Check by multiplying.7x - 21y
A. 7(x - 21y) B. 7(x - y) C. 7(x - 3y) D. 3(7x - 7y)
Mathematics