Express the number in decimal notation.8.1 × 105
A. 81,000
B. 8,100,000
C. 405
D. 810,000
Answer: D
Mathematics
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Provide an appropriate response.Find the volume of a cone that has a diameter of the base of 6 ft. and a vertical height of 
Round to nearest tenth.
What will be an ideal response?
Mathematics
Find the mean.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. Round your answer to one decimal place if necessary. 55 67 62 54 63 58 60 51 56
A. 57.2 B. 58.4 C. 58.0 D. 57.8
Mathematics
Graph the inequality.x2 + y2 ? 4
A. 
B. 
C. 
D. 
Mathematics
The problem that follows refers to triangle ABC.
?
If 
and 
km, find C and c.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 
km
B. 
? km
C. 
? km
D. ?
km
E. 
? km
Mathematics