Answer:
The solution is (1,2)
Step-by-step explanation:
- 2x - y = - 4
x + 2y = 5
Multiply the second equation by 2 so we can eliminate x
2( x + 2y) = 5*2
2x +4y = 10
Add this to the first equation
- 2x - y = - 4
2x +4y = 10
----------------------
3y = 6
Divide each side by 3
3y/3 = 6/3
y = 2
- 2x - y = - 4
x + 2y = 5
Multiply the first equation by 2 to eliminate y
2(- 2x - y) = - 4*2
-4x -2y = -8
Add this to the second equation
-4x -2y = -8
x + 2y = 5
------------------
-3x = -3
Divide by -3
-3x/-3 = -3/-3
x = 1
The solution is (1,2)
Answer:
For what value of the constant c is the function f continuous on (-infinity, infinity)?
f(x)
=cx2 + 8x if x < 3
=x3 ? cx if x ? 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Bsbsbdvd devebehehevergrbrhrhrhjddududyZhhdbdbsgssgsggsUhfhd
Answer:
No because they have different slopes
Step-by-step explanation:
(1 , 2) and (2, 4)
Slope:
m=(y2-y1)/(x2-x1)
m=(4-2)/(2-1)
m = 2
The answer is 4/3 as you can cancel 5 and 10 you get 2 as the numerator and then times 2/3