Solve the problem.For the function f(x, y) = cos (6x2 + y2 - 6) at the point p = 
, find the unit vector for which f decreases most rapidly.
A. 
i + 
j
B. 
i + 
j
C. 
i + 
j
D. 
i + 
j
Answer: C
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Use inequality notation and interval notation to describe the set. ? The annual rate of inflation r is expected to be at least 4% but no more than 9%. ?
A. Inequality : 4% ? r ? 9%Interval : [4, 9] B. Inequality : 4% < r ? 9%Interval : [4, 9] C. Inequality : 4% < r < 9%Interval : [4, 9] D. Inequality : 4% ? r < 9%Interval : [4, 9] E. Inequality : 4% > r > 9%Interval : [4, 9]
A study asked 54 adults if they had taken art, biology, or cooking in school. According to the Venn diagram below, how many had taken
n(A ? B)
A. 21 B. 14 C. 11 D. 29
Find the selling price per item to the nearest cent.Total cost: $247Quantity: 46 pr.Unsaleable: 6 pr.% Markup on selling price: 41%
A. $3.81 B. $4.38 C. $9.10 D. $10.47
Simplify the expression.cos x + sin x tan x
A. cot x - 1 B. tan x - 1 C. csc x D. sec x