Answer:
The final answers are x = 5 OR x = -1.
Step-by-step explanation:
Given the equation is x^2 -5 = 4x
Rewriting it in quadratic form as:- x^2 -4x -5 = 0.
a = 1, b = -4, c = -5.
Using Quadratic formula as follows:- x = ( -b ± √(b² -4ac) ) / (2a)
x = ( 4 ± √(16 -4*1*-5) ) / (2*1)
x = ( 4 ± √(16 +20) ) / (2)
x = ( 4 ± √(36) ) / (2)
x = ( 4 ± 6 ) / (2)
x = (4+6) / (2) OR x = (4-6) / (2)
x = 10/2 OR x = -2/2
x = 5 OR x = -1
Hence, final answers are x = 5 OR x = -1.
Answer:
w = 20
Step-by-step explanation:
Add 18 on both sides:
Multiply by 4 on both sides:
w = 20
Answer:
69 chief quief.. .. .......
Answer:
The answer is F) none of the above. The correct sales tax is $902.72
Step-by-step explanation: