Solve the problem. Where appropriate, round to three places.A telephone is placed in the corner of a 13-ft by 17-ft room. Telephone wire will run diagonally under the carpet to the jack in the opposite corner of the room. If 4 ft of slack is required on each end, how much wire should be purchased?
A. 21.401 ft
B. 29.401 ft
C. 13.401 ft
D. 25.401 ft
Answer: B
Mathematics
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Solve.
= 9 - 
A. 2
B. 
C. 1
D. 
Mathematics
For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 6)i + (ln(sec t) - 9)j + 5k, -?/2 < t < ?/2
A. a = (sec2 t)T + (cos t)N B. a = (sec t tan t)T + (sec t)N C. a = (cos t)T + (cos t)N D. a = (csc t)T + (sec t)N
Mathematics
Write the inequality in interval notation.7 > x ? -5
A. (-5, 7) B. [-5, 7) C. [-5, 7] D. (-5, 7]
Mathematics
Match the system of inequalities with one of the graphs.x2 + y2 < 9 y ? 1
A. 
B. 
C. 
D. 
Mathematics