Find the indicated sum.
+ 1 + 
+ . . . + 9
A. 
B. 
C. 66
D. 
Answer: A
Mathematics
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Given matrix A, find the indicated cofactor.Find A42.A =
A. 0 B. -42 C. -21 D. 42
Mathematics
Solve the problem.The length of a vegetable garden is 9 feet longer than its width. If the area of the garden is 90 square feet, find its dimensions.
A. 6 ft by 15 ft B. 5 ft by 14 ft C. 5 ft by 16 ft D. 7 ft by 16 ft
Mathematics
Write the solution set in interval notation.-5 < z < -1
A. {z|-5 < z > -1} B. {z|-5 > z > -1} C. {z| -1 < z < -5} D. {z|-5 < z < -1}
Mathematics
Find the area under the given curve over the indicated interval.y = ex; [1, 2]
A. e2 + e B. e2 - e C. e2 + e - 1 D. e2 - e + 1
Mathematics