Find the foci of the ellipse whose equation is given.
+ 
= 1
A. foci at (4, -2 - 
) and (4, -2 + 
)
B. foci at (-2, 3 - 
) and (-2, 3 + 
)
C. foci at (3, -2 - 
) and (3, -2 + 
)
D. foci at (-3, -2 - 
) and (-3, -2 + 
)
Answer: C
Mathematics
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Write the phrase as a mathematical expression. Use x as the variable.Some number multiplied by 7.74
A. 
B. 7.74 - x
C. 7.74 + x
D. 7.74x
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Select the graph that represents the given equation.x + y + z = 6
A. 
B. 
C. 
D. 
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Graph the equation and give the coordinates of the vertex.y = -x2 - 2x - 6 
A. (1, 5)
B. (-1, -7)
C. (-1, 5)
D. (-1, -5)
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Write the decimal in words.0.4643
A. Four thousand six hundred forty-three thousandths B. Four thousand six hundred forty-three hundredths C. Four thousand six hundred forty-three ten-thousandths D. Four thousand six hundred forty-three hundred-thousandths
Mathematics