Answered

Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

I need help with math fast (well explained) worth 18 points!!!!!!!!!!


1: a ball is arremesada in the air and its height above the ground in time X (in seconds) is given by the function F (x) = x² - 5x. Determine how long the ball hit the ground again.

2: A banking application yields a day x Mesum value in real given by the function f (x) = x² - 4x - 5. Determine the days when there is no income that application.

Help me :)

Sagot :

apologiabiology
1. so just subsitute numbers if we subsitute 5 for x then we get 0 if it's height is 6 then the time will be 16

2. so you want to factor the equation and get f(x)=x^2-4x-5=(x-5)(x+1) then set this equation = to 0 so (x-5)(x+1)=0
x-5 or x+1 must equal 0 so
x-5=0
x=5
x+1=0
x=-1
discard this because you cannot yield a negative ammount

 so when the bank yields 5 in a day, the income is 0

We hope this was helpful. Please come back whenever you need more information or answers to your queries. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.