Solve the rational inequality.3 + 
- 
? 0
A. 
B. [-7, 0) ? 
C. 
D. (-?, -7] ? 
Answer: B
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Sketch the vector field in the plane along with its horizontal and vertical components at a representative assortment of points on the circle x2 + y2 = 4.F = xi - yj
What will be an ideal response?
Divide using distribution.
A. 8x4 + 4x - 9x2
B. 4x4 + 2x3 - 
C. 8x2 + 4x - 9
D. 8x4 + 4x3 - 9
Solve the problem.Julia is preparing a meal by combining three ingredients. One unit of each ingredient provides the following quantities (in grams) of carbohydrates, fat, and protein. Protein(g)Carbohydrates(g)Fat (g)Ingredient A331Ingredient B242Ingredient C451Ideally the meal should contain 
of protein, 
of carbohydrates, and 
of fat. How many units of each ingredient should Julia use?
A. 2 grams of ingredient A, 3 grams of ingredient B, 4 grams of ingredient C B. 3 grams of ingredient A, 4 grams of ingredient B, 2 grams of ingredient C C. 4 grams of ingredient A, 2 grams of ingredient B, 3 grams of ingredient C D. 2 grams of ingredient A, 4 grams of ingredient B, 3 grams of ingredient C
Suppose that the function with the given graph is not f(x), but f'(x). Find the open intervals where the function is concave upward or concave downward, and find the location of any inflection points.
A. Concave upward on (-2, 2); concave downward on (-?, -2) and (2, ?); inflection points at -120 and 120 B. Concave upward on (-2, 2); concave downward on (-?, -2) and (2, ?); inflection points at -2 and 2 C. Concave upward on (-?, 0); concave downward on (0, ?); inflection point at 0 D. Concave upward on (-?, -2) and (2, ?); concave downward on (-2, 2); inflection points at -2 and 2