Solve the problem.A rug is to fit in a room so that a border of even width is left on all four sides. If the room is 15 feet by 17 feet and the area of the rug is 80 square feet, how wide will the border be?
A. 3.5 feet
B. 6 feet
C. 5.5 feet
D. 4.5 feet
Answer: A
Mathematics
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Find an equation for the graph.
A. y = -3 cos (3x)
B. y = -3 cos 
C. y = 3 cos 
D. y = -3 sin (3x)
Mathematics
The height (in feet) of a certain kind of tree is approximated by 
where t is the age of the tree in years. Estimate the age of a 60-ft tree. Please round the answer to two decimal places.
?
t = __________ years
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify.
A. 
B. ± 
C. 0
D. - 
Mathematics
Use the figure in following problem
Find the measure of angle 3.
(a) 50° (b) 60° (c) 70 (d) 110°
Mathematics