Solve the equation. Express radicals in simplest form.-2k2 - 1 = -19
A. ±6
B. -9.5
C. 3
D. ±3
Answer: D
Mathematics
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Solve using the elimination method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this. 8x - 4y = 24-5x - 2y = 12
A. (0, -6) B. No solution C. (0, -5) D. (-1, -5)
Mathematics
Simplify the expression.
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?
A. 
B. 
C. 
D. 
E. 
Mathematics
Complete the factoring.10 = 5( )
A. 2 B. 15 C. 3 D. 5
Mathematics
Find the gradient vector field of the scalar function f. (That is, find the conservative vector field F for the potential function f of F.)
f(x, y, z) = 8xy² + 2yz³
Mathematics