Select the correct answer. These are the cost and revenue functions for a line of trumpets sold at a music store:
R(x) = 76x -0.25x2
CX) = -7.75x+5,312.5
Based on these functions, what is the maximum profit that can be made, to the nearest dollar?
O A.
$1,469
OB. $1,702
OC. $3,375
OD. $5,776

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

answer: idk

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11