Solve the equation on the interval 0 ? ? < 2?.cot
= 1
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.(3, -7), (4, -9), (2, -10), and (1, -8) are the vertices of a square. Find the area of the square.
A. 5
B. 
C. 25
D. 
Mathematics
Solve.The temperature on a March morning is -9°F at 6 a.m. If the temperature drops 2° by 7 a.m., rises 6° by 8 a.m., and then drops 2° by 9 a.m., find the temperature by 9 a.m.
A. 7°F B. 19°F C. -7°F D. -19°F
Mathematics
Insert <, >, or = to make the statement true.-94 
-62
A. = B. > C. <
Mathematics
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 = 69.7 centimeters, ? = 
radians, A = ?
A. 242.9 cm2 B. 10.9 cm2 C. 763.1 cm2 D. 1526.2 cm2
Mathematics