A bicycle shop owner knows that when she sells \( x \) bikes per month, her revenue i\( 280 x - 0.4 x ^ { 2 } \) dollars. The monthly expenses for operating the shop are \( 32 x + 1 ; 750 \) dollars. Which of these polynomials represents the shop's profit for the month?
\( 0.4 x ^ { 2 } + 248 x - 1,750 \)
\( 0 - 0.4 x ^ { 2 } + 248 x - 1,750 \)
\( 0.4 x ^ { 2 } - 248 x + 1,750 \)
\( 0 - 0.4 x ^ { 2 } + 248 x + 1,750\)
option B
Given the general term of the sequence, determine the first \(5\) terms:
\(a ( n ) = ( n - 1 ) / ( n + 1 )\) *
Kelvin is at his house located at \( ( 3,4 ) \) on a coordinate plane and walks to the store located at \( ( 1,0 ) \) . The store is located exactly half way between Kelvin's house and Mitch's house. To the nearest tenth, what is the distance between Kelvin's house and Mitch's house? A. \( 4.2 \) B. \( 4.5 \) C. \( 5.7 \) D. \( 8.9\)
