Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = 
from x = 2 to x = 6; n = 4; use right endpoints
A. 7.60
B. 10.67
C. 10.27
D. 8.72
Answer: A
Mathematics
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Subtract.-17 - 10
A. -7 B. -27 C. 27 D. 7
Mathematics
Referring to triangle ABC, find the area of the triangle.
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Round to three significant digits.
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S = __________ m2
Fill in the blank(s) with the appropriate word(s).
Mathematics
Verify that the matrix is invertible and find its inverse.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 
Mathematics
Solve the system by graphing. If there isn't a unique solution to the system, state the reason.4x + y = 0-4x + y = -8
A. (1, 8) B. (-1, -4) C. (1, -4) D. (-1, 4)
Mathematics