Solve.-4x - 6y - z = -42 x + 3y + 7z = 456x + y + z = 21
A. (-2, 4, 5)
B. (2, 4, 5)
C. (-2, 5, 4)
D. (2, 5, 4)
Answer: D
Mathematics
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A. 
ln x - 
+ C
B. 
ln x - 
+ C
C. 
ln x - 
+ C
D. 
ln x + 
+ C
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Use point plotting to graph the plane curve described by the given parametric equations.x = t3 + 1, y = t3 - 1; -2 ? t ? 2
A. 
B. 
C. 
D. 
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Write the fraction.Of the 237 students at a university, 51 are sophomores. What fraction of the students are sophomores?
A. 
B. 
C. 
D. 
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Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-4
+ 4i
A. 8(cos(-135°) + i sin(-135°)) B. 8(cos(-45°) + i sin(-45°)) C. 8(cos 135° + i sin 135°) D. 8(cos 45° + i sin 45°)
Mathematics