sqrt (5x - 9) - 1 = x
sqrt(5x - 9) = x + 1
Square both sides:_
5x - 9 = x^2 + 2x + 1
x^2 - 3x + 10 = 0
(x - 5)(x + 2) = 0
x = 5 or -2.
Lets look for for any extraneous solutions:-
x = 5 ; sqrt (5*5-9) - 1 = sqrt16 - 1 = 3 and x = 3 (right hand side of equation)
so x = 5 is a solution
x = -2: sqrt(5*-2 - 9) - 1 = sqrt (-19) - 1 and x = -2 so this is extraneous
Answer:- One solution x = 5
Answer:
Yes that's correct!! Nice work!! (: You're doing great.
Step-by-step explanation:
The value of x = 11.
Explanation: 99-22x=- 12x - 11
Collect like terms: -22x + 12x = -11 - 99
Divide both sides: -10x = -110 by -10
A trinomial is an equation with 3 terms and the only one with 3 terms is the first option
side length of square = 8
perimeter of square = 4*(side length) = 4*8 = 32
perimeter of square = perimeter of circle = circumference = 32 cm
circumference formula is
C = 2pi*r
32 = 2pi*r .... plug in the given circumference
32/(2pi) = (2pi*r)/(2pi) .... divide both sides by 2pi
16/pi = r
r = 16/pi
r = 16/pi = the exact radius in terms of pi
r = 5.092958 = the approximate value of the radius
The units for the radius are in centimeters.
