celinesitto
celinesitto celinesitto
  • 25-11-2015
  • Mathematics
contestada

the path of firework is modelled using the equation h= -5d2+20d+1 what is the maximun height?

Respuesta :

Since3122015
Since3122015 Since3122015
  • 25-11-2015
[tex]h=-5d^2+20d+1\\h'=-10d^2+20d=0\\-10d(d-2)=0\\d=0,2\\\\h=-5(2)^2+20(2)+1\\h=-5(4)+40+1\\h=-20+41\\h=21[/tex]

21 units
Answer Link

Otras preguntas

order from least to greatest 2.614,2.146,2.46,2.164
Write 59 sixths as an improper fraction
The floor in Lila's bedroom is 30 square yards. Calculate the area in square feet
evaluate the importance of the microscope to biology
a total of $21,000 is invested in two bonds that pay 4% and 7.5% simple interest. The bond with 7.5 % interest rate earned 6 times as much interest. as the bond
what was the primary purpose of southern implementation of black codes
why did so many African Americans migrate north throughout the 1920s? A.) for the milder climate B.)for a chance at a better future C.)to save money D.)to serv
what was the primary purpose of southern implementation of black codes
Factorise x^2+6x-7 ?? Help please
Choose the equation of the horizontal line that passes through the point (-8,-7),