Your question is on Spanish but I'll try to answer it
log x 25 = -2 => x^-2 = 25
we know that x^-2 is the reciprocal value that is also written as (1/x)^2, according to this
=> (1/x)^2 = 5^2 => 1/x = 5 => x= 1/5
Check log (1/5) 25 = x => (1/5)^x = 5^2 => 5^-x = 5^2 => -x=2 =>
x= -2 Good luck!!!
The answer is $108.60 because $25.67 x 3= 77.01+ $23.55= 100.56 x 8% = $8.0448 + $100.56= $108.60
To determine whether or not (8, 4.5) is a solution to y=3/4x-1/2, substitute 8 for x and 4.5 for y:
4.5 = (3/4)(8) - (1/2)
4.5 = 6 - 0.5
4.5 = 5.5
No, (8, 4.5) is not a solution of the given function.
