Solve the problem.A survey of 2202 credit card users indicated that 881 had bought books online, 1107 had bought music online, 446 had bought pet supplies online, 122 had bought both books and music, 218 had bought both books and pet supplies, 157 had bought both music and pet supplies, and 77 had bought all three. How many credit card users did not buy any of the three? How many bought either books or pet supplies but not music?
A. 265; 766
B. 188; 907
C. 188; 766
D. 188; 843
Answer: B
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Suppose that over a certain region of space the electrical potential V is given by V(x, y, z) = 8x² - 7xy + 7xyz.
Find the rate of change of the potential at in the direction of the vector v = 7i + 10j - 8k. a. -15.099 b. 14.569856 c. 44 d. 20 e. -0.96
Solve the compound inequality. Write your answer in interval notation or state that there is no solution.1 - 3x ? 7 or 7x + 3 ? -25
A. [-2, ?) B. (-?, ?) C. (-?, -4) ? (-2, ?) D. (-?, -4] ? [-2, ?)
Change 458 to base eight. ?
A. 712 eight B. 916 eight C. 772 eig?ht D. 710 eight E. 711 eight
The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used.
A. B = 59°, a ? 59.6 B. B = 31°, a ? 59.6 C. No triangle is formed. D. B = 59°, a ? 4.9