Using cramer’s rule, what is the value of y in the system of linear equations below? 2x-y=3 5x-2y=8
2 answers:
The answer is y=2×-3 and y=4-5/2x
Answer:
The value of y is 1
Step-by-step explanation:
Given the system of linear equations
2x-y=3
5x-2y=8
we have to find the value of y using cramer’s rule
Cramer’s Rule is a method that uses determinants to solve the systems of equations that have same number of equations as that of variables.
The coefficient matrix is


For Y-matrix


By cramer's rule

Hence, value of y is 1
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Answer:
The surface area of the cylinder will be "131.88".
Step-by-step explanation:
The given values are:
Height of cylinder,
h = 4 m
Radius of cylinder,
r = 3 m
As we know,
The surface are of cylinder is:
⇒ 
On substituting the values, we get
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⇒ 
⇒ 
Answer:
R=(4,5)
Step-by-step explanation:
M={x1+x2/2,y1+y2/2}
(6,7)={8+x2/2,9+y2/2}
Equating the x coordinates and y coordinates
6=8+x2/2
12=8+x2
x2=12-8=4
7=9+y2/2
14=9+y2
y2=14-9=5