Answer: 2 + √10 , 2 − √10
Step-by-step explanation:
-5x(x-4) = -30
divide by -5
x(x - 4) = -30
distribute the x
x^2 - 4x = 6
move the 6 to the left to have the equation equal zero
x^2 - 4x - 6 = 0
plug into the quadratic formula & solve
x
= 2 + √10 , 2 − √10
The images to solve this problem is in the attachment.
Answer:
= 671.0 N;
= 300 N
Step-by-step explanation: From the image in the attachment and knowing that the box is in equilibrium, i.e., the "sum" of all the forces is 0, it is possible to conclude that:
=
and
= 
Using trigonometry, shown in the second attachment, the values for each force are:
sin 20° = 
=
. sin(20)
= 735.0.913
= 671.0
cos 20° = 
=
. cos (20)
= 735.0.408
= 300
The force of static friction is 671N and normal force is 300N
The answer to your problem is X= -155/54
Answer:
I Believe It Is B.), Have Fun Dreamer!
Step-by-step explanation: