Perform the indicated operation.71.86 + 1.258 + 1.147 + 1.27
A. 76.535
B. 75.635
C. 75.535
D. 75.545
Answer: C
Mathematics
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Provide an appropriate response.Find the error in the following "proof" that the area inside the lemniscate 
and then find the correct area. A = 
= 
= 
= 0
What will be an ideal response?
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Find the perimeter of the triangle.a scalene triangle whose sides are 18 cm, 9 cm, and 19 cm
A. 37 cm B. 85.5 cm C. 46 cm D. 45 cm
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Solve the problem.The diagram below shows the side view of a plan for a slanted roof. Find the unknown length in this roof plan. Round approximations to the nearest tenth. 
16 ft
A. 9 ft B. 160 ft C. 12 ft D. 17.9 ft
Mathematics
Factor.7x2 - 7x - 42
A. 7(x - 2)(x + 3) B. (7x + 14)(x - 3) C. 7(x + 2)(x - 3) D. 7x2 - 7x - 42
Mathematics