Solve the equation.
= 
A. ?
B. {- 
}
C. {
}
D. {7}
Answer: C
Mathematics
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Provide an appropriate response.
Find the direction in degrees (to the nearest 0.1°) of the vector It (total current) in the given figure. 
A. 51.1° B. 52.1° C. 38.9° D. 37.9°
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Find the product.
A. x2 - 25x - 6
B. x2 - 
C. x2 + 25x - 6
D. x2 - 25
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Provide an appropriate response.If z = (2x + 3y)3 and x = r2 - 2s and y = 2s - r, then 
when r = 2 and s = 1 is
A. 84. B. 104. C. 92. D. 88. E. 96.
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Evaluate.-p4, when p = 6
A. -1296 B. 24 C. 5 D. 1296
Mathematics