Answer:
What rectangle?
Step-by-step explanation:
Answer:
a 4th of a cup maybe
Step-by-step explanation:
Answer:
Option J
Step-by-step explanation:
Newton's Universal Law Of Gravitation
Newton discovered that all objects attract each other with a force of gravitational attraction which is proportional to their masses and inversely proportional to the square of the distance between them.
Where are the masses in kg and d is the distance between them in meters.
In the problem, we have
Answer:
The correct option is (A)
A. Replace row 4 by its sum with - 4 times row 3.
w = 8
x = 17/2
y = 6
z = -5
Step-by-step explanation:
The given matrix is
To solve this matrix we need to create a zero at the 4th row and 3rd column which is 4 at the moment.
Multiply 3rd row by -4 and add it to the 4th row.
Mathematically,
So the correct option is (A)
A. Replace row 4 by its sum with - 4 times row 3.
So the matrix becomes,
Now the matrix may be solved by back substitution method.
Bonus:
The solution is given by
Eq. 1
-3z = 15
z = -15/3
z = -5
Eq. 2
y + 2z = -4
y + 2(-5) = -4
y - 10 = -4
y = -4 + 10
y = 6
Eq. 3
2x - 6y + 0z = 5
2x - 6(6) = 5
2x - 12 = 5
2x = 12 + 5
2x = 17
x = 17/2
Eq. 4
w - 4x + 4y + 0z = -2
w - 4(17/2) + 4(6) = -2
w - 34 + 24 = -2
w - 10 = -2
w = -2 + 10
w = 8