Solve the problem.Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even. C(x) = 1.3x + 840 R(x) = 1.9x
A. 1420 units
B. 337 units
C. 1410 units
D. 1400 units
Answer: D
Mathematics
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Solve the problem.Integrate 
over the region 0 ? x2 + y2 ? 100.
A. ?(1 - cos2 10) B. 2?(1 - cos 100) C. ?(1 - cos 100) D. 2?(1 - cos2 10)
Mathematics
Perform the indicated operation(s). Simplify if possible.- 
- 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression for the given values. If necessary, round to the nearest tenth.6x2 + 3y x = 10, y = 5
A. 3090 B. 615 C. 3615 D. 180
Mathematics
Simplify to the form a + bi.
+ 97i2
A. -97 + 7
B. -97 - 7
i
C. -97 + 7
i
D. 97 + 7
i
Mathematics