1.no should b 8x + 20
2.no should be 21x + 14
3.yes
3.yes
Answer:
18.87 km/hr
Step-by-step explanation:
First boat is heading North with a speed of 10 km/hr.
Second boat is heading West with a speed of 16 km/hr.
Time for which they move = 2.5 hours
To find:
The speed at which the distance is increasing between the two boats.
Solution:
Let the situation be represented by the attached diagram.
Their initial position is represented by point O from where they move towards point A and point B respectively.



We can use Pythagorean Theorem to find the distance AB.
AB is the hypotenuse of the right angled
.
According to Pythagorean theorem:

The speed at which distance is increasing between the two boats is given as:

Answer:
14.6
Explanation:
It's pretty simple if you use a calculator, have a nice day and good luck with your work! <3
Answer:
POSITIVE
Step-by-step explanation:
Because the product of 2 negative numbers is a positive number