Differentiate. f (x) = ln 4x
What will be an ideal response?
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Find the standard form of the equation for the ellipse satisfying the given conditions. Center (0, 0); vertices (0, ±6); c = 2
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Write an equation that expresses the relationship. Use k for the constant of proportionality.P varies directly as R and inversely as the square of S.
A. P = 
B. P + R - S2 = k
C. P = 
D. PRS2 = k
Solve.A lumber yard has fixed costs of $4956.80 per day and variable costs of $0.66 per board-foot produced. Lumber sells for $2.26 per board-foot. How many board-feet must be produced and sold daily to break even?
A. 3098 board-feet B. 2065 board-feet C. 1697 board-feet D. 7510 board-feet
Multiply.(x2 - x + 9)(x + 5)
A. x3 + 4x2 + 4x + 45 B. x3 + 45 C. x3 + 4x2 + 45 D. x3 + 6x2 + 14x + 45