Use a calculator to give the real number value. Round the answer to 7 decimal places.y = cos-1(-0.3907)
A. 2.0079383
B. -1.1698423
C. 1.9721882
D. 1.9206367
Answer: C
Mathematics
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and 
, of the point given in Cartesian coordinates.(
, -
)
A. 
B. 
C. 
D. (
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Find the area of the shaded region. y = sec2 x
A. 1 + 
B. 1 - 
C. 2 - 
D. 
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Solve the problem.A collection of dimes is arranged in a triangular array with 11 coins in the base row, 10 in the next, 9 in the next, and so forth. Find the value of the collection.
A. $3.30 B. $0.66 C. $13.20 D. $6.60
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Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 - 5x + 1
A. x-intercepts: none
B. x-intercepts: 
C. x-intercepts: 
D. x-intercepts: -1 and 5
Mathematics