Solve the equation.x4 - 40x2 + 144 = 0
A. {2, 6}
B. {-2i, 2i, -6i, 6i}
C. {4, 36}
D. {-2, 2, -6, 6}
Answer: D
Mathematics
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Convert to decimal notation.- 
A. -0.475
B. -0.4
C. -0.47
D. -0.48
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Provide an appropriate response. Find the value of cos 2.45 rad. Round to four significant digits.
A. 0.6378 B. -0.7702 C. 0.9991 D. -0.8280
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Solve.Find the area of the triangle. (The area of a triangle is A = 
bh) 
b = 
, h = 
A. 
B. 
C. 
D. 34x
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Find the indicated term using the given information.a = -7, d = - 
; a36
A. 0
B. - 
C. - 14
D. 
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