Solve the equation 
for ?y. Round your answers to two decimal places, if necessary.
?
A. 
or 
B. 
or 
C. 
or 
D. None of the above.
Answer: A
Mathematics
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Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 - 7x
A. 
; 
2
B. 49; 
2
C. 0; 
2
D. 
; 
2
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Find all square roots of the number.256
A. ±17 B. ±18 C. ±32 D. ±16
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Match the equation of the ellipse with the appropriate description.4x2 + 25y2 = 2500
A. x-intercepts (100, 0), (-100, 0); y-intercepts (0, 625), (0, -625) B. x-intercepts (25, 0), (-25, 0); y-intercepts (0, 10), (0, -10) C. x-intercepts (10, 0), (-10, 0); y-intercepts (0, 25), (0, -25) D. x-intercepts (625, 0), (-625, 0); y-intercepts (0, 100), (0, -100)
Mathematics
Perform the indicated operation. 
+ 
A. 
B. 
C. 
D. 
Mathematics