Grade 11 Math Help: Solving Quadratic Equations

Thread starter punk_rawk_jazz
Start date Oct 26, 2004
Tags

Grade 11

AI Thread Summary

The discussion focuses on solving a quadratic equation, specifically 36 = 49s^2. Participants clarify that the equation can be rearranged to the standard form of ax^2 + bx + c = 0 by moving 36 to the other side, resulting in 49s^2 - 36 = 0. The original poster expresses initial confusion but acknowledges understanding after revisiting the problem. The exchange highlights the importance of breaking down quadratic equations for clarity. Overall, the conversation emphasizes collaborative problem-solving in math.

Oct 26, 2004

punk_rawk_jazz

Not getting this question. SHould be easy. Got the rest of the assignment..

36=49s^squared...

it's a quadratic equation.. supposed to solve from the form of ax^squared plus bx plus c equals zero...

need help.

Physics news on Phys.org

Oct 26, 2004

chathamchick

just move the 36 to the other side, so the answer is 49s^2-36

Oct 26, 2004

punk_rawk_jazz

...

haha... I'm a little slow. it just took me a little while of going over the question again and again. thanks for the help.

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .

View full post »

Thread 'I've come across another fluid pressure problem I don't understand'

Neglect gravity other than that of water; neglect friction. F1=ρgsh=1000*10*1*(1+4)=50000 N; F1=ρgsh=1000*10*0.1*4=4000 N; F3=50000-4000=46000 N?

View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...

View full post »