Perform the indicated operation.(2.9b - 10) - (9.4b - 7)
A. 12.3b - 17
B. -65b - 3
C. 6.5b + 3
D. -6.5b - 3
Answer: D
Mathematics
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Find the mean of the list of data.17, 19, 21, 21, 19, 17
A. 20 B. 18 C. 21 D. 22 E. 19
Mathematics
Provide an appropriate response.Let f(x) = x2 + 3x + 1 and g(x) = -2.(a)Find: (f ? g)(x)(b)Find: (g ? f)(x)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use Gaussian elimination and matrices to solve the system of linear equations. Write your final augmented matrix in triangular form and then solve for each variable using back substitution.x - y + 4z=164x + z= 5x + 5y + z=25
A. (0, 4, 5) B. (5, 4, 0) C. (0, 5, 4) D. (5, 0, 4)
Mathematics
Factor the difference of two squares.343x2 - 112
A. 7(7x - 4)2 B. 7(7x + 4)(7x - 4) C. 14(7x + 4)(7x - 4) D. 7(7x + 4)2
Mathematics