Can y’all please help me

the high of the aircraft at the time of takeoff is 33 meters

Step-by-step explanation:

height of hovercraft x second after takeoff =h(×)= -(x-11)

(x+3)

We want to know the height of the hovercraft 0 seconds after takeoff

height of hovercraft 0 seconds after takeoff=h(0)= -(0-11)

(0+3)= -(-11)(3) = 33

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47