Answer: ![12m^2+19m-18](https://tex.z-dn.net/?f=12m%5E2%2B19m-18)
Step-by-step explanation:
Given
Speed of boat ![v=3m-2\ \text{knots per hour}](https://tex.z-dn.net/?f=v%3D3m-2%5C%20%5Ctext%7Bknots%20per%20hour%7D)
![\text{time t= }4m+9\ \text{hours}](https://tex.z-dn.net/?f=%5Ctext%7Btime%20t%3D%20%7D4m%2B9%5C%20%5Ctext%7Bhours%7D)
![\Rightarrow \text{Distance =speed}\times \text{time}](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ctext%7BDistance%20%3Dspeed%7D%5Ctimes%20%5Ctext%7Btime%7D)
![\Rightarrow \text{Distance d=}(3m-2)\cdot (4m+9)\\\Rightarrow d=12m^2+19m-18](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ctext%7BDistance%20d%3D%7D%283m-2%29%5Ccdot%20%284m%2B9%29%5C%5C%5CRightarrow%20d%3D12m%5E2%2B19m-18)
6x-y=3 this is the equation in standard form
The length of each side is one
add them together to get the perimeter of four
Answer:
225 miles
Step-by-step explanation:
We start by converting it into a fraction, then multiply by the quantity
![\frac{100 miles}{2 cm} *4.5 cm =225 miles](https://tex.z-dn.net/?f=%5Cfrac%7B100%20miles%7D%7B2%20cm%7D%20%2A4.5%20cm%20%3D225%20miles)