need help solving

Can you tell me between what two integer does root -20 to the power of 3 lie?   And please explain how you arrive at your answer.

So when doing this problem and dividing the -2 by 3 it comes out to secx=-2/3 which is not possible right? Because no other side can be greater than the hypotenuse. Maybe I don't know what im talking...

y=x2 -3x -2  y=x2+10x+25 I need the work to find discrimants and number of real solutions

If a whole sandwich cost 4.50 and a half sandwich cost 3.00. Are the prices for the sanwiches proportional

A square plywood platform has a perimeter which is 7 times the length of a side, decreased by 18. Find the length of a side.

I would like to know the maximum value and minimum value of x^2-5x+6=0, If I can just get a direct answer with the reason why that would be great!, Please and thank you!

This is extra credit for my math class.

if the first and third of three consecutive odd integers are added, the result is 45 less than five times the second integer. Find the third integer

What will the answer be and please break it down in steps so I can understand were you got the answer from.