Find the standard form of the equation of the ellipse with the given characteristics and center at the origin.
?
Focies: (±7,0); major axis of length 16
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, same direction B. Perpendicular C. Parallel, opposite directions D. Neither
Mathematics
Simplify the algebraic expression by combining like terms.
x - 
x + 
x
A. 
x
B. 
x
C. - 
x
D. 
x
Mathematics
Find the values of x and y.
?
?
__________
?
__________
What will be an ideal response?
Mathematics
Express the interval in set-builder notation and graph the interval on a number line.[-2, 4)
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics