Find the area of the triangle. If necessary, round the answer to two decimal places.a = 11, b = 12, c = 17
A. 68.73
B. 65.73
C. 71.73
D. 74.73
Answer: B
Mathematics
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Solve the problem.Sabrina plans to paint one side of a fence that seperates her yard from her neighbor's yard. The base of the fence is in the xy-plane with shape x = 30cos3t, y = 30sin3t, 0 ? t ? 
, and the height at (x, y) is 1 + 
y, all measured in feet. How much paint will she need if a gallon covers 150 square feeet?
A. 7
gallons
B. 1
gallons
C. 225 gallons
D. 
gallons
Mathematics
Find the sum.
A. 
B. 
C. 
D. Does not exist
Mathematics
Write the ratio in lowest terms.7
pounds to 2 pounds
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by factoring.4x2 - 28x + 40 = 0
A. {4, 2, 5} B. {2, 5} C. {-2, -5} D. {0, 2, 5}
Mathematics