Evaluate dz.z = ln (7x + 2y);x = 10, y = 10, dx = 0.02, dy = -0.03
A. 0.002
B. -0.002
C. -0.001
D. 0.001
Answer: D
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You put a drink in the freezer to cool. When it is chilled, you take the drink out but, being forgetful, leave it sitting on the kitchen counter. The temperature D, in degrees, of the drink t minutes after it is put in the freezer is given by
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When is the drink the coldest, and what is its coldest temperature? Round your answers to two decimal places.
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A. It reaches its coldest temperature of 9.76 degrees after 25.76 minutes. B. It reaches its coldest temperature of 25.76 degrees after 9.76 minutes. C. It reaches its coldest temperature of 12.37 degrees after 29.30 minutes. D. It reaches its coldest temperature of 29.30 degrees after 12.37 minutes.
Calculate the arc length S and area A for each of the following sectors. Round to the nearest whole number if necessary.a = 82°, r = 7 in.
A. S = 12 in., A = 36 sq in. B. S = 14 in., A = 28 sq in. C. S = 10 in., A = 35 sq in. D. S = 8 in., A = 35 sq in.
Find the degree of the polynomial.-9x + 2x7 - 3x6 - 6
A. degree 6 B. degree 4 C. degree 7 D. degree 2
Find two square roots for the complex number. Write your answer in standard form.
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A. 
B. 
C. 
D. 
E. 