Solve the system by the substitution method.
?
?
A. 
B. 
C. 
D. 
E. inconsistent
Answer: D
Mathematics
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Find the second derivative of the function.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Convert. When necessary, round the answer to two decimal places.10.25 pounds = _____ ounces
A. 0.64 B. 143.5 C. 12 D. 164
Mathematics
Solve.A comet follows the hyperbolic path described by 
where x and y are in millions of miles. If the sun is the focus of the path, how close to the sun is the vertex of the path?
A. 10 million mi B. 3.7 million mi C. 0.7 million mi D. 2.4 million mi
Mathematics
Find the 4 × 4 matrix that produces the described transformation, using homogeneous coordinates.Rotation about the y-axis through an angle of 60°
A. 
B. 
C. 
D. 
Mathematics