Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the area of the region specified in polar coordinates.the smaller loop of the curve r = 3 + 6 sin ?
A. 
(2? + 3
)
B. 
(2? + 3
)
C. 
(2? - 3
)
D. 
(2? - 3
)
Mathematics
Find the area.Find the area of the region in the first quadrant between the curve y = e-2x and the x-axis.
A. 
e
B. 
C. 2
D. 1
Mathematics
Find the simple interest. Round to the nearest cent.Principal = $430Rate = 9%Time in years = 3
A. $145.13 B. $10.32 C. $179.17 D. $14.51
Mathematics
Write an inequality involving the variable x that describes the set of numbers graphed.
A. x < -4 B. x ? -4 C. x > -4 D. x ? -4
Mathematics