Add or subtract. Assume all variables represent positive real numbers.
+ 
A. 
B. 
C. 
D. 
Answer: A
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Find the area of the specified region.Inside one loop of the lemniscate r2 = 5 cos 2?
A. 
B. 
C. 5
D. 10
Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 4, u '(1) = -7, v(1) = 7, v '(1) = -4.
(2u - 4v) at x = 1
A. -20 B. 36 C. -30 D. 2
Solve. Round all amounts to one decimal place.What number is 88% of 291?
A. 25.6 B. 2561 C. 256.1 D. 25,610
Solve the problem.The bar graph below shows the percent of income spent on leisure activities in various countries of the world. List all countries in the graph in which more than 12% of household income is spent, on average, for leisure activities.
A. Britain, Japan, USA B. China, Australia, France C. Germany, Britain, Japan, USA D. Japan, USA