Solve the system of equations.x + 3y + 2z = -26 3y + 2z = -23 z = -4
A. {(-3, -4, -5)}
B. ?
C. {(-4, -5, -3)}
D. {(-3, -5, -4)}
Answer: D
Mathematics
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Find the focus and directrix of the parabola.y2 - 32x = 0
A. (8, 0); y = -8 B. (0, 8); y = -8 C. (8, 0); x = 8 D. (8, 0); x = -8
Mathematics
Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (3, 3, 3) for 
+ 
+ 
= 0.
A. - 
B. 
C. 
D. - 
Mathematics
Write the whole number in words.64,568,009
A. sixty million, forty-five thousand, sixty-eight hundred and nine B. sixty-four million, five hundred sixty-eight thousand, nine C. sixty-four million, five hundred thousand, sixty-eight hundred, nine D. sixty-million, five thousand sixty-eight hundred, nine
Mathematics
Write the expression in the standard form a + bi.
A. 1 + i B. -1 + i C. -1 - i D. -1 + 2i
Mathematics