Answer:
z = 4
y = -1
x = 2
Step-by-step explanation:
x - y = 3
Therefore => x = 3 + y
y + 2z =7
Therefore => y= 7 - 2z
We have the equation :
2x + 3y + 4z = 17
2(3 + y) + 3(7 - 2z) + 4z = 17
6 + 2y + 21 - 6z +4z = 17
2(7 -2z) - 2z + 27 = 17
14 - 4z - 2z + 27 = 17
-6z + 41 = 17
-6z = -24
z = 4
<h2>
Answer:</h2>
We take the example of:
Three collinear points in a plane.
Then we may conclude that they will never form a triangle.
<h2>
Step-by-step explanation:</h2>
We know that a conditional statement is given by:
If p then q
where p is the hypothesis of the statement and q is the conclusion of the statement.
Counter example for a conditional statement--
A counter example is an example that makes the general statement is false.
i.e. a example which fulfills the condition of the hypothesis but does not satisfy the conclusion of the given statement.
If three distinct points lie in a plane, then the points can form a triangle.
i.e. Hypothesis is: Three distinct point lie in a plane.
and conclusion is: The points form a triangle.
So we take a example as:
Three collinear points lie in a plane but they will never form a triangle.
Answer:
x = 1.5 ; y = -0.5
Step-by-step explanation:
2x + 4y = 1 ---------------------(i)
3x - 5y =7 ----------------------(ii)
(i) * 5 10x + 20y = 5
(ii)*4 <u> 12x -20y = 28 </u>
add, 22x = 33 { here y will be eliminated}
x = 33/22 = 3/2
x = 1.5
Put the value of x in equation (i)
2*1.5 + 4y = 1
3 + 4y = 1
4y = 1-3
4y = -2
y = -2/4 = -1/2
y = -0.5
Answer:
5×2is your answer right answer
Okay so whats the question?
