Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. z - 4
B. z + 4
C. |z2 + 8z + 16|
D. |z + 4|
Answer: D
Mathematics
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Test the vector field F to determine if it is conservative.F = -cos x cos yi + sin x sin yj - sec2 zk
A. Not conservative B. Conservative
Mathematics
Solve the problem.Rewrite the integral 
in the order 
.
A. 
B. 
C. 
D. 
Mathematics
Determine the domain of the rational function.R(x) = 
A. {x
- 
, -1}
B. {x
- 
, 1}
C. {x
-1, 
}
D. {x
1, 
}
Mathematics
Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The sum of a number and 9 multiplied by the sum of the number and 19 is equivalent to 47 minus 28 times the number.
A. 9x(x + 19) = 47 - 28x B. (x + 9)(x + 19) = 47 - 28x C. (x + 9)(x + 19) = 28x - 47 D. (9x + 9)(19x + 19) = 28x - 47
Mathematics