Answer:
19, 2
Step-by-step explanation:
let the 2 numbers be x and y with x > y , then
x + y = 21 → (1)
x - y = 17 → (2)
Add the 2 equations term by term to eliminate y , that is
2x = 38 ( divide both sides by 2 )
x = 19
substitute x = 19 into (1) for value of y
19 + y = 21 ( subtract 19 from both sides )
y = 2
The 2 numbers are 19 and 2
Answer:

Step-by-step explanation:
Given that
are in AP
To prove:
are in AP
From given as we know if p , q, r are in AP then 2q= p+r.

Now

Which is the result of AP
.
Hence proved
Answer:
-5
Step-by-step explanation:
==> [4-9]
==>[-5]
==> -5
I take the points that you gave. Let named A(0,-3) and B(2,1)
The slope coefficient is S= (yb-ya)/(xb-xa)
S= (1-(-3))/(2-0) => S= (1+3)/2 = 4/2= +2 => S= +2
The correct answer is positive slope
Good luck!!!