Answer:
22
Step-by-step explanation:
Solutions to the equation are 5, -6
Step-by-step explanation:
- Step 1: Equation is √(x² + 2x - 25) = √(x + 5). Square both sides to simplify the equation
⇒ x² + 2x - 25 = x + 5
⇒ x² + x - 30 = 0
⇒ x² + 6x - 5x - 30 = 0
⇒ x(x + 6) - 5(x + 6) = 0
⇒ (x - 5)(x + 6) = 0
⇒ x = 5, -6
Answer:
Step-by-step explanation:
Put the values of x and y in the equations and solve the resulting system.
A(2) +(-3) = 5
A(2) +B(-3) = 20
__
The first equation tells the value of A:
2A = 8 . . . . add 3
A = 4 . . . . . .divide by 2
This and the second equation tells the value of B:
(4)(2) -3B = 20
-3B = 12 . . . . . subtract 8
B = -4 . . . . . . . divide by -3
The values of A and B are 4 and -4, respectively.
The Intercepting point and answer is: (1,-3)
The graph:
If you want to know what is 8.5 + m <= 4, you can solve this inequation using the following steps:
8.5 + m <= 4
m <= 4 - 8.5
m <= - 4.5
Result: The value of m is less than or equal to - 4.5.