Solve the problem.Julia, who is 1.88 m tall, wishes to find the height of a tree. She walks 19.26 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is now 6.56 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 2.85 m
B. 0.64 m
C. 7.40 m
D. 5.52 m
Answer: C
Mathematics
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Find the additive inverse of the number.- 
A. - 
B. 
C. 
D. - 
Mathematics
Solve the problem.In a regular polygon with n sides, if the distance from the center to the midpoint of a side is R and ? is the central angle subtended by one side, then the length of a side x is given by 
Solve for ?.
A. ? = cot-1 
B. ? = 2 tan-1 
C. ? = tan-1 
D. ? = 2 cot-1 
Mathematics
Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Find the book value at the end of the third year for a service van which cost $16,000, has a life of 8 years, and an estimated scrap value of $1,600.
A. $8,400 B. $6,000 C. $10,000 D. $7,600
Mathematics
Determine the quadrant containing ?.csc ? < 0 and cos ? < 0
A. I B. II C. III D. IV
Mathematics