Use Cramer's rule to solve the system.2.5x + 2.2y = 40.11.0x - 2.3y = -9.4
A. {(9, 8)}
B. {(-9, -8)}
C. {(-8, 9)}
D. {(8, 9)}
Answer: A
Mathematics
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Find the derivative of the function.f(x) = (x2 - 3x + 2)(4x3 - x2 + 5)
A. 4x4 - 48x3 + 33x2 + 6x - 15 B. 20x4 - 52x3 + 33x2 + 6x - 15 C. 4x4 - 52x3 + 33x2 + 6x - 15 D. 20x4 - 48x3 + 33x2 + 6x - 15
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Find the area of the specified region.Inside the circle r = 
sin ? and outside the cardioid r = 1 + cos ?
A. 
B. 
C. 
D. 
Mathematics
Multiply.
A. 5546 B. 5656 C. 5646 D. 5746
Mathematics
Find the area.
A. 24 cm2
B.
| 36 cm2 |
C. 18 cm2
D. 12 cm2
Mathematics