Answer:
a) See the file below, b)
, c) 
Step-by-step explanation:
a) Points moves clockwise as t increases. See the curve in the file attached below. The parametric equations describe an ellipse.
b) The arc length formula is:
![s = \int\limits^{0.5\pi}_{-0.25\pi} {[\left( 3\cdot \cos t\right)^{2}+\left(-5\cdot \sin t \right)^{2}]} \, dx](https://tex.z-dn.net/?f=s%20%3D%20%5Cint%5Climits%5E%7B0.5%5Cpi%7D_%7B-0.25%5Cpi%7D%20%7B%5B%5Cleft%28%203%5Ccdot%20%5Ccos%20t%5Cright%29%5E%7B2%7D%2B%5Cleft%28-5%5Ccdot%20%5Csin%20t%20%5Cright%29%5E%7B2%7D%5D%7D%20%5C%2C%20dx)
c) The perimeter of that arc is approximately:


Answer:RTGrg
Step-by-step explanation:just need points lol sorry
Answer:
1.0
Step-by-step explanation:
6 is greater than 5 therefore it rounds 9 up to the next number which is 10, 1.0 or just 1.
First plug in -4 for g to get 3(-4)-1. 3(-4) equals -12, and -12-1 equals -13.
Answer:
Id say its C!
Because in mm, a human hair on average is 70 mm's thick
Have a wonderfull day :D