I really need help with these practice questions pleasee . Could you do them on a piece of paper or on the practice questions sheets so I can better understand.

l. A patient's blood pressure can be modelled using the function P(t) = 1000 (sin 002'\"), where 0 s t s 2 minutes. What is the maximum blood pressure (nearest whole number} reached? 2. A wooden treasure chest is rectangular in shape where the length along the front is twice as long as its width. The top, front, and the two sides of the treasure chest are made of teak; the back and the bottom are made of maple. The treasure chest is to have a volume of 0.25 m3. Teak costs three times as much as maple. Find the dimensions that would minimize the cost of the treasure chest. Round your answer to 2 decimal places. Restrictions are not necessary. 3. Determine the position and velocity of a particle when its acceleration is zero if the position in metres at time t seconds is given by 3(t) = R3 48L\". Describe the motion of the particle at this moment