MATH 0120 Midterm: MAT-120 answers-2.5-363
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Answers: 2. 5: y = x + 2. 11c) p (x) = 4x 40, 000. 11d) p (8, 000) = $ 8, 000 and p (12, 000) = , 000: solve 2x + 14 = 3x + 4 x = 2 y = 10, elimination method for x and for y: 3(cid:19): multiply the rst equation by 4 and the second equation by 2: 4x 3y y = 6 and x = 4. So the point of intersection is ( 4, 6): solve 15x = 5x + 10, 000 so x = 1000. Break-even point (1000, 15, 000: solve 0. 4x = 0. 2x + 120 so x = 600. Break-even point (600, 240: c(t) = 24, 000 4, 800t, c(x) = 12, 100 + . 60x and r(x) = 1. 15x and p (x) = 0. 55x 12, 100. 31c) sketch a line from (0, 60, 000) to (4, 12, 000) 39b) from celcius to farenheit: determine the line connecting (0, 32) and (100, 212)
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x^2 + 8xy + 8y^2 x^2 + 8xy + 15y^2 x + 8xy + 15y |
54x^14 + 72x^9 54x^14 + 72x^9 -42x^7 54x^14 + 12x^2 -7 |
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Trinomial, degree 3 Trinomial, degree18 Trinomial, degree11 |
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False |