Answer:
Thanks you too
Step-by-step explanation:
Answer:
This is pythagoras
A squared plus b squared equals c squared.
The unknown side is c as its the hypotenuse,
So the length of the first side is 6.4 this squared = 40.96
The other length is 12 as 6 is the radius so the diameter of the circle amd therfore the length of the triangle is 12.
12 squared is 144
144 + 40.96 = 184.96
The length of c squared is 184.96
To find the length of c alone we calculate the square root.
The square root of 184.96 = 13.6
? = 13.6
Ax2<span> + bx + c = 0 = </span>a(x+d)^2<span> + </span>e<span> = 0 </span>
Answer:

along the direction 68.19° from north.
Step-by-step explanation:
Given,
- speed of the boat, u= 2 miles/hour along north
- speed of the river, v= 5 miles/ hour along east
Since, north and east are perpendicular to each other, so we can write the resultant velocity in vector form as,

Hence, the magnitude of resultant velocity can be written as



Hence, the magnitude of resultant vector is \sqrt{29} moles/hour.
And the direction of the boat can be given by,



= 68.19°
Hence, the resultant velocity of boat is
miles/hour along the direction making an angle 68.19° with the north.