Evaluate the polynomial.b2 - 4ac for a = 4, b = -6 and c = 3
A. -22
B. -8
C. -12
D. -18
Answer: C
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Calculate the average rate of change of f on each interval. What happens to this average rate of change as the interval decreases in length?f(x) = x3
(i) [2.9, 3.1] (ii) [2.99, 3.01] (iii) [2.999, 3.001]
A. (i) 9.03; (ii) 9.0003; (iii) 9.000003; approaches 9. B. (i) 27.01; (ii) 27.0001; (iii) 27.000001; approaches 27. C. (i) 0.90033333; (ii) 0.09000033; (iii) 0.009; approaches 1. D. (i) 6; (ii) 6; (iii) 6; approaches 6.
Graph using the slope and the y-intercept.g(x) = -0.6x + 3
A. 
B. 
C. 
D. 
Write the expression in the standard form a + bi.3i(3 - 4i)
A. 9i + 12i2 B. 12+ 9i C. 9i- 12 D. 9i - 12i2
Ruff, Inc. makes dog food out of chicken and grain. Chicken has 10 grams of protein and 5 grams of fat per ounce, and grain has 2 grams of protein and 2 grams of fat per ounce. A bag of dog food must contain at least 720 grams of protein and at least 370 grams of fat. If chicken costs 10 cents per ounce and grain costs 1 cent per ounce, how many ounces of each should Ruff use in each bag of dog food in order to minimize cost? ?
A. 0 ounces of chicken and 360 ounces of grain B. 70 ounces of chicken and 0 ounces of grain C. 70 ounces of chicken and 10 ounces of grain D. 74 ounces of chicken and 0 ounces of grain E. no solution