Solve by the substitution method.x + y = -4x + y = -2
A. No solution
B. (0, -6)
C. (0, 0)
D. (-4, -2)
Answer: A
Mathematics
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Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the semicircle y = 
A. 
= 
, 
= 0
B. 
= 
, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 
Mathematics
Provide an appropriate response.Simplify: 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Assume that all variables represent nonnegative real numbers.11
- 5x
A. 16
B. 6x
C. 11
- 5x
D. 6x
Mathematics
Use the intermediate value theorem for polynomials to show that the polynomial function has a real zero between the numbers given.f(x) = 2x4 - 10x2 + 6; 2 and 3
A. f(2) = 2 and f(3) = -78 B. f(2) = 2 and f(3) = 78 C. f(2) = -1 and f(3) = 79 D. f(2) = -2 and f(3) = 78
Mathematics