Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = 2x + 3 from x = 0 to x = 2; n = 4; compute R4
A. 17
B. 11
C. 13
D. 15
Answer: B
Mathematics
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A. Yes B. No
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Find the real solutions, if any, of the equation. Use the quadratic formula.5x2 + 20x - 25 = 0
A. 
B. 
C. 
D. 
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Find the graph of the rational function.
A. 
B. 
C. 
D. 
E. none of these
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Use identities to write the expression as a function of x alone.sin (45° + x)
A. 
B. - 
C. - 
D. 
Mathematics