36) <span>5(2 + 7k)(-2 + 7k)
39) </span><span>8(5 + b)(5 + b)</span>
Answer:
I think it's parallelograms.....
Step-by-step explanation:
Parallelograms; a four-sided plane rectilinear figure with opposite sides parallel.
You need to have a little more detail in your answer, sir or madam.
Answer: can somebody help me w my recent marking brainlist
Step-by-step explanation:
Sorry ik this isn’t the answer :(
Answer:
5√3 miles per hour
Step-by-step explanation:
Throughout their journey, the component of velocity of rowboat B to the east is the same as that of rowboat A:
(10 mph)(cos(π/3)) = 5 mph
Meanwhile, the component of velocity of rowboat B to the north is ...
(10 mph)(sin(π/3)) = 5√3 mph
Since rowboat A is always traveling in a direction that is at right angles to the direction between the boats, it contributes nothing to their relative speed. Since rowboat B is always directly north of rowboat A, its speed to the north is their relative speed.
The distance between the rowboats is increasing at 5√3 mph ≈ 8.66 mph.