Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = x2 + 2; interval [0, 5]; n = 5; use left endpoints
A. 65
B. 40
C. 66
D. 32
Answer: B
Mathematics
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For the pair of similar triangles, find the length of the indicated side.
In the upper triangle, the shortest side has length 16, and the middle side has length 24. In the lower triangle, the shortest side has length 12, the middle side has length 18, and the longest side has length 24. Find the length, x, of the longest side of the upper triangle.
A. x = 30 B. x = 32 C. x = 24 D. x = 40
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Solve the system of linear equations using matrices.
A. (8, 5, 6) B. ? C. (-8, 5, 16) D. (8, 6, 5)
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Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
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Decide whether the following is a statement or is not a statement.Go fly a kite.
A. Statement B. Not a statement
Mathematics