Find the root. Assume that all variables represent positive numbers.
A. 9
B. z9
C. z36
D. 2z
Answer: B
Mathematics
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Graph the polar equation.r = 2 - sin ?
A. 
B. 
C. 
D. 
Mathematics
An x-ray of a patient's leg is done with a current setting of 30mA for a time of 1s. If none of the distances is changed and the current is increased to 60mA, what should the exposure time be?
A. 2s B. 4s C. 0.5s D. 0.25s
Mathematics
Verify the identity.
- 
= 4 cot ? csc ?
What will be an ideal response?
Mathematics
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x2 - 14x + 49 > 0
A. (7, ?)
B. (-?, 7) ? (7, ?)
C. (-?, 7)
D. (-?, ?)
Mathematics