Solve.x2 + 2 = 227
A. ±15
B. 113.5
C. ±14
D. 15
Answer: A
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For the following pair of equations, predict whether they represent parallel lines, perpendicular lines, or lines that intersect but are not perpendicular. ? 5.4x + 9.9y = 6.6 and 9.9x - 5.4y = 8.2 ?
A. parallel lines B. lines that intersect but are not perpendicular C. perpendicular lines
Find the LCM of the pair of numbers.6 and 15
A. 15 B. 90 C. 21 D. 30
Use an inverse function to find all approximate solutions to the equation. 5 tan x + 6 = 0
A. x = 2.2655 + n?, for integers n B. x = 0.8761 + n?, for integers n C. x = 4.0177 + n?, for integers n D. x = 2.2655 + n?, x = 4.0177 + n?, for integers n
What point on the surface z is closest to the origin?
?
?
Hint : Minimize the square of the distance from 
to the origin.
?
A. 
B. 
and 
C. 
D. 
E. 
and 