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