A computer password consists of any five capital letters from the ordinary English alphabet (A through Z).How many different passwords start with the letter Z?
A. 264
B. 265 - 1
C. 254
D. 26 × 25
E. none of these
Answer: A
Mathematics
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Using a sum or difference identity, write the following as an expression involving functions of x.sin (360° + x)
A. sin x
B. -cos x
C. 
cos x + 
sin x
D. 
cos x - 
sin x
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Determine whether the triangles in the given pair are congruent. If so, state the property that shows the triangles are congruent.
A. congruent; SAS B. congruent; AAS C. congruent; ASA D. not congruent
Mathematics
Draw a sketch to illustrate the fractional part.
of an object
A. 
B. 
C. 
D. 
Mathematics
Express as a single logarithm and, if possible, simplify.ln (x2 - 16) - ln (x + 4)
A. ln (x - 16) B. ln (x - 4) C. ln (x + 4) D. ln (x2 - 4)
Mathematics