If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 26.8 centimeters, ? = 
radians, A = ?
A. 35.9 cm2
B. 112.8 cm2
C. 4.2 cm2
D. 225.6 cm2
Answer: B
Mathematics
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Set up an integral for the length of the curve.y = 
, 
? x ? 
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.cos 164°5'
A. -0.7616616 B. -0.5808308 C. -0.9616616 D. -0.4808308
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Find the LCD. Do not combine fractions.
, 
A. 2(x - 2)(x + 6) B. 2(x - 2)(x - 6) C. 2(x + 2)(x - 6) D. 2(x + 2)(x + 6)
Mathematics
Factor by grouping.6x2 + 13xt + 6t2
A. (6x + 2t)(x + 3t) B. (3x - 2t)(2x - 3t) C. (3x + 2t)(2x + 3t) D. Prime
Mathematics