Answer: 14,534
Step-by-step explanation:
Exact Form:
x
=
1
4
,
23
4
Decimal Form:
x
=
0.25
,
5.75
Mixed Number Form:
x
=
1
4
,
5
3
4
hope it will help i think its right
Answer:
d the answer is d
Step-by-step explanation:
i did that last year
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
Answer:
(0,-3) & (2,0)
Step-by-step explanation:
To find when f(x)=g(x), then look for a value that is the same for both functions in the table. -3 occurs twice for the same x value. 0 also appear twice for the x value 2. This is when they are equal. The solution is (0, -3) and (2,0)