Convert the equation given in rectangular form into polar form.4x - 9y + 14 = 0

A. r = 
B. r = 
C. 4 cos ? - 9 sin ? = 14
D. 4 cos ? - 9 sin ? = -14

Answer: B

Mathematics

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Evaluate the integral using the given substitution., u = cot 6?

A.  csc3 6? cot2 6? + C
B.  cot2 ? + C
C. -  tan2 6? + C
D. -  cot2 6? + C

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Find the value of s in the interval [0, ?/2] that makes the statement true. Round to four decimal places.sec s = 3.7404

A. 0.2706 B. 4.9830 C. 1.3002 D. 1.8414

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Write as a decimal number rounded as indicated.0.; Round to the nearest thousandth.

A. 0.949 B. 0.95 C. 0.950 D. 0.944

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Determine the constant term that must be added to the expression to make it a perfect square.x2 - ax

A. - 
B. - 
C.
D.

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Mathematics