Simplify. Assume that all variables represent positive real numbers.
A. 4x
B. 
C. x 
D. 
Answer: D
Mathematics
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = 
between x = 1 and x = 5 using an left sum with two rectangles of equal width.
A. 
B. 
C. 
D. 
Mathematics
Use the graph and formula for f(x) to find the average rates of change of f from -4 to -1 and from 1 to 4.y = -0.4x2 + 3
A. -2; -2 B. 2; -2 C. -2; 2 D. 2; 2
Mathematics
Simplify.-1(x + 5)
A. -x + 5 B. x + 5 C. x - 5 D. -x - 5
Mathematics
Solve the equation on the interval 0 ? ? < 2?.cos ? - 1 = 0
A. 
B. {0}
C. 
D. {?}
Mathematics