In each of problems, determine intervals in which solutions are sure to exist.

1. y^(4) + 4y"' + 3y = t
2. ty"' + (sin t)y" + 3y = cos t
3. t(t - 1)y^(4) + e^ty" + 4t^2y = 0
4. y"' + ty" + t^2y' + t^3y = ln t
5. (x-1)y^(4) + (x + 1)y" + (tan x)y = 0
6. (x^2 - 4)y^(6) + x^2y"' + 9y = 0

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Graham’s monthly bank statement showed the following deposits and withdrawals. -$25.20, $42.75, -$22.04, -$18.50, $74.11. part a if grahams baldness in the account was $37.86 at the beginning of the month,! 27/4! 2// the account balance at the end of the month? ? plz i will give you 100 points

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?