Ivan began to prove the law of sines using the diagram and equations below. sin(a) = h/b, so b sin(a) = h. sin(b) = h/a, so a sin(b) = h. therefore, b sin(a) = a sin(b). which equation is equivalent to the equation b sin(a) = a sin(b)?   edit: the answer is b!

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.