Solve the exponential equation. For irrational solutions, round to four decimal places.27 + 3x = 
A. {-3}
B. {1}
C. {3}
D. 
Answer: A
Mathematics
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Provide an appropriate response.An open box is formed by cutting a square piece out of each corner of a 12-inch by 10-inch piece of metal. If each side of the squares cut out is x inches long, the volume of the box is given by 
This problem only makes sense when this volume is positive. Find the values of x for which the volume is positive.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the equation.4 ln(7x) = 32
A. {e8}
B. {e8/7}
C. 
D. 
Mathematics
Find the equation of a circle satisfying the given conditions.Center: (2, -9); radius: 9
A. (x + 2)2 + (y - 9)2 = 81 B. (x - 9)2 + (y + 2)2 = 9 C. (x - 2)2 + (y + 9)2 = 81 D. (x + 9)2 + (y - 2)2 = 9
Mathematics
Find the dot product v ? w.v = 7i - 3j, w = 9i + j
A. 0 B. 66 C. -20 D. 60
Mathematics