Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(1, -1)}
B. {(2, 3)}
C. {(3, 2)}
D. {(3, 0)}
Answer: B
Mathematics
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Find the volume of the solid. Round to two decimal places when necessary.Cube
A. 4900 mm3 B. 29,400 mm3 C. 2,058,000 mm3 D. 343,000 mm3
Mathematics
Express the sum or difference as a product.cos 
+ cos 
A. 2 sin 2x sin 
B. 2 sin 2x sin x
C. 2 cos 2x
D. 2 cos 2x cos 
Mathematics
For the function find the maximum number of real zeros that the function can have, the maximum number of x-intercepts that the function can have, and the maximum number of turning points that the graph of the function can have. f(x) = -x6 + 8x5 - x2 - 8x + 3
A. 5; 5; 6 B. 6; 6; 6 C. 6; 5; 5 D. 6; 6; 5
Mathematics
Evaluate the expression without using a calculator.
-1/3
A. -4
B. 4
C. - 
D. 
Mathematics