Solve.
= -7
A. 
B. 
C. 
D. ?
Answer: D
Mathematics
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Establish the identity.cot2 
= 
What will be an ideal response?
Mathematics
Evaluate the expression using the provided information.Find sin (? - ?) given that sin ? = 0.8491 and cos ? = 0.1297 and that ? and ? are between 0 and 
. Round to the nearest ten-thousandth when necessary.
A. 0.9105 B. 0.6339 C. 0.7735 D. -0.4136
Mathematics
Find parametric equations for the rectangular equation.y = 3x2 + 6
A. x = 
; y = 3t + 6; t ? 0
B. y = t; x = 3t2 + 6; 0 ? t < ?
C. x = t2; y = 3t + 6; 0 ? t < ?
D. x = t; y = 3t2 + 6; 0 ? t < ?
Mathematics
Provide an appropriate response.Convert the decimal .697697697... to a fraction by writing it as the infinite series 
A. 
B. 0.6986987
C. 0.696
D. 0.698
Mathematics