Answered

Find answers to your questions and expand your knowledge with IDNLearn.com. Ask anything and receive prompt, well-informed answers from our community of knowledgeable experts.

-
3) Janel is a bungee-jumper preparing for a legally approved jump off of a bridge over water. Janel wants to just touch
the water on her jump. Janel's path of travel is represented by f(x) = 25x2 – 120x + 144. Janel will jump from the start,
z=0. How many meters will Janel travel laterally before she touches the water?

Sagot :

Answer:

2.4 meters

Step-by-step explanation:

Take f(x) = 0 to find lateral distance covered.

0 = 25x² - 120 + 144

=> (5x - 12)²

=> x = 12/5

=> x = 2.4 meters

So f(x) is 0

[tex]\\ \rm\hookrightarrow 25x^2-120x+144=0[/tex]

[tex]\\ \rm\hookrightarrow (5x)^2-2(5x)(12)+12^2=0[/tex]

[tex]\\ \rm\hookrightarrow (5x-12)^2=0[/tex]

[tex]\\ \rm\hookrightarrow 5x-12=0[/tex]

[tex]\\ \rm\hookrightarrow 5x=12[/tex]

[tex]\\ \rm\hookrightarrow x=12/5[/tex]

[tex]\\ \rm\hookrightarrow x=2.4m[/tex]

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. For dependable and accurate answers, visit IDNLearn.com. Thanks for visiting, and see you next time for more helpful information.