Evaluate.cos-1 
A. 
B. - 
C. 0
D. ?
Answer: C
Mathematics
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Use the factor theorem to determine whether the first quantity is a factor of the second quantity.6x4 + 3x3 - 9x2 - 5x - 5, x - 1
A. No B. Yes
Mathematics
Find the indicated sum.7 + 3 - 1 + . . . - 153
A. -146 B. -2920 C. -144 D. -2993
Mathematics
Factor the expression completely. If the polynomial is prime, state this as your answer.x12 - 25
A. (x2 - 5)2 B. (x2 + 5)2 C. prime D. (x6 + 5)(x6 - 5)
Mathematics
Solve. Round your answer to the nearest tenth, if necessary.The length of a rectangular storage room is 5 feet longer than its width. If the area of the room is 50 square feet, find its dimensions.
A. Width is 4 feet; length is 11 feet B. Width is 5 feet; length is 10 feet C. Width is 6 feet; length is 11 feet D. Width is 4 feet; length is 9 feet
Mathematics