Answer:
the right triangle by using point p. Q.and R
I hope this help
Answer:
Following are the solution to these question:
Step-by-step explanation:
Please find the complete question in the attachment file.
Formula:


Factorise to get (x - 0.5)^3 = 0
The equation has root 1/2 with multiplicity 3.
67.38 degrees
To find this, follow the steps below:
cos (B) = 5/13
cos -1 (cos(B)) = cos-1 (5/13)
The cos-1 and cos cancel each other out.
B = cos-1 (5/13)
B = 67.38
Hope this helps!
Going down stream the boats going 21 mph and upstream it's 3 miles per hour so the current im guessing is 7 mph