Approximate the area under the curve and above the x-axis using n rectangles. Use left endpoints.f(x) = ex + -1 from x = -2 to x = 1; n = 4
A. -5.06
B. 1.73
C. -1.27
D. 6.94
Answer: C
Mathematics
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Solve the given applied problem.In a particular classroom with 38 students, the rate y at which a rumor spreads is related to the number of people x who have heard the rumor according to the expression 
Determine how many people will have heard the rumor when the spread of the rumor is at its greatest.
A. -31 B. 114 C. 19 D. 69
Mathematics
Use the order of operations agreement to simplify the given expression.
? 
+ 
? 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Write the result in the form a + bi.(3 - 7i) + (8 + 5i)
A. -11 + 2i B. 11 + 2i C. -5 + 12i D. 11 - 2i
Mathematics
Use long division to divide the polynomials.
A. 2x2 - x + 4 + 
B. 2x2 + 3x + 2 + 
C. 2x3 + 3x + 
D. 2x2 + 3x + 2
Mathematics