Simplify.-|7|
A. -7
B. 0
C. 7
D. - 
Answer: A
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__tttt0610191318__f1q181g7.jpg" alt="" style="vertical-align: -4.0px;" />
where R is the trapezoid with vertices at 
A. 
sin 1
B. 
sin 1
C. 
sin 2
D. 
sin 2
Solve the problem.Find an equation for the horizontal tangent to the curve at P.
A. y = 
B. y = 
C. y = 0
D. y = 1
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(-9, 3
)
A. (6
, 150°), (-6
, 330°)
B. (6
, 60°), (-6
, 300°)
C. (6
, 30°), (-6
, 330°)
D. (6
, 120°), (-9
, 240°)
Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.A = [3 -8 7 7 ]
A. 1; square matrix B. 1 × 4; row matrix C. 4; row matrix D. 4 × 1; column matrix