Write a numerical expression for the phrase and simplify it.The sum of 23 and -5, divided by the product of 2 and -3
A. 
; - 18
B. 23 + 
; -3
C. 
; -3
D. 
; - 
Answer: C
Mathematics
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Evaluate the given expression.
+ 
A. 
B. 24
C. 
D. 
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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
Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.4i
A. 4(cos 90° + i sin 90°) B. 4(cos 180° + i sin 180°) C. 4(cos 270° + i sin 270°) D. 4(cos 0° + i sin 0°)
Mathematics
Solve.- 
= 2x - 
- x
A. 
B. 
C. 
D. 
Mathematics