Triangles ABC and DEF are similar triangles. Find the height of triangle DEF. Round to the nearest tenth.
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A) 1.3 ft
B) 20.0 ft
C) 7.2 ft
D) 10.5 ft
E) 9.5 ft
C) 7.2 ft
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 8i + 6j , v = i - j
A. 14; -14k B. 2; -2k C. 14; -k D. 2; 2k
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Which of the following mathematical equations is used to calculate the degree of operating leverage (DOL)? (? = change)
A. DOL = % ? in net operating income (NOI)/% ? in sales B. DOL = % ? in sales/% ? in earnings before taxes (EBT) C. DOL = % ? in earnings before interest and taxes (EBIT)/% ? in earnings per share (EPS) D. DOL = % ? in sales/% ? in earnings per share (EPS) E. DOL = % ? in earnings per share (EPS)/% ? in earnings before taxes (EBT)
Simplify the exponential expression.(x-4y5)-2
A. 
B. 
C. 
D. 