The function for the monthly charge for water service would be
F(x) = 32 + 6.53x where x=the number of kilogallons used.
Answer:
x ≈ -8.402, 8.502
Step-by-step explanation:
The usual methods of solving quadratic equations apply to this one. Any of them can be used: graphing, factoring, completing the square, quadratic formula.
<h3>Solution</h3>
Often, when the coefficients are non-integers and have no obvious relationship to each other, the most convenient method of solution is the quadratic formula. It tells you the solution to ax²+bx+c=0 is ...
Your equation has the coefficients, a = -0.07, b = 0.007, c = 5, so the solutions are ...
To determine the inverse of a function, we first write the parent function in terms of y. So, in this part the x would be isolated to one side of the equation. Then, with the new form of the parent function, we switch the x into y and y to x. The new function would be the inverse function. For the given function, we do as follows:
<span> y=-4/x + 1
y - 1 = -4/x
x ( y - 1 ) = -4
x = -4 / (y -1)
Replacing x into y and y into x,
</span>y = -4 / (x -1)
<span>Therefore, the inverse is y=-a/x-b where a = 4 and b = 1.</span>
Answer:
x^8/3y^2
Step-by-step explanation:
A) x+5=13 -- subtract 5 from both sides
x=8
B) -6x=-30 -- they're both negative so change the sign to positive
6x=30 -- divide both sides by 6
x=5
C) x/4=18 -- multiply both sides by 4
x=72
D) x-2=-11 -- add 2 to both sides
x=-9
D gives the lowest answer.
