Hello!
The answer for A is:
The answer for B is: The rocket will hit the lake surface in 5 seconds.
<h2>Why?</h2>
Defining the terms:
So, replacing it in the quadratic equation (it's given to you in the exercise)\\
We are working with a quadratic equation, so we will have two possible results,
Now, we are asked to find the time, time can not be a negative value, we have to discard X1 (-1) since it's a negative value, knowing that, the rocket will hit the lake after 5 seconds.
Have a nice day!
Assuming both Mario and Todd just walked today.
Mario is every 8 days
Todd is every 14 days.
The days that will coincide is the Least Common Multiple (LCM) of 8 and 14
2 / 8 14
2 / 4 7
2 / 2 7
7 / 1 7
/ 1 1
The LCM = 2 * 2* 2* 7 = 56
The will both walk together in the next 56 days.
(6,8) is the answer also this could be the answer too (6,2)
hope this helps
Answer:
C
Explanation:
》F=ma
》F=0 for balanced force ,so,
》a=0 which means moving at a constant speed
D is also right but C is more precise.We have to select the most suitable answer.
