Solve the problem.Determine whether the ordered triple (7, 2, -5) is a solution of the system of equations.3x - 8y + z = 02x + 4y - 3z = 37-x + 2y - z = 2
A. Yes
B. No
Answer: A
Mathematics
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Find all the roots of the function. Use preliminary analysis and graphing to determine good initial approximations. Round to six decimal places.f(x) = cos 2x - 
+ 3
A. x ? -4.190947, 1.190947 B. x ? -2.801947, 2.579947 C. x ? -2.690947, 2.690947 D. x ? -2.579947, 2.801947
Mathematics
Find the extreme values of the function and where they occur.y = 
A. Absolute maximum is 7 at x = 2. B. Absolute maximum is 7 at x = -2. C. Absolute minimum is 7 at x = 0. D. Absolute minimum is 0 at x = 1.
Mathematics
Perform the modular arithmetic operation.42 - 29 (mod 4)
A. 1 B. 0 C. 52 D. 2
Mathematics
Solve.log4 (3x - 4) = 1
A. 
B. 
C. 
D. 5
Mathematics