Solve the problem.Find the length of a rectangular lot with a perimeter of 130 m if the length is 7 m more than the width. 
A. 65 m
B. 29 m
C. 72 m
D. 36 m
Answer: D
Mathematics
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Find the eccentricity of the ellipse.16x2 + 4y2 = 64
A. 
B. 
C. 
D. 
Mathematics
Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The amount of sun-induced expansion (in mm) of a steel I-beam 10 m long before expansion: 
A. 0.001 mm B. 0.032 mm C. 0.065 mm D. 0.072 mm
Mathematics
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 
, w = 
A. 16.3° B. 0° C. 90° D. 73.7°
Mathematics
Find the exact value of the expression.sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Mathematics