Use the square root method to solve the equation. 25x2 - 64 = 0
A. x = 
B. x = ± 
C. x = 
D. x = ± 
Answer: D
Mathematics
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Collect like terms.-3n9 - 3n9 + 9n9
A. 81n27 B. 81n9 C. 3n27 D. 3n9
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 3t, y = t + 2; -2 ? t ? 3 
A. 
B. 
C. 
D. 
Mathematics
Using the appropriate right triangle, find the exact value of the trigonometric expression.cos 30°
A. 
B. 
C. 
D. 
Mathematics
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.-x = 0.88; divide by
A. -1
B. 
C. 
D. 0.88
Mathematics