Answer:
y =
Step-by-step explanation:
So we are trying to put this equation in the form, y = mx + b.
First we add 8x to both sides;
10y = 8x - 5
Divide both sides by 10
y =
So we have to reduce the fractions to their lowest terms;
y =
Using the information given we can set up a simple math equation.
(1.6 x 4) + 0.8 + (0.3 × 2) = Paint used
6.4 + 0.8 + 0.6 = Paint used
7.8 = Paint used.
Finally you end up with your answe being B. 7.8 gallons of paint used.
As you know, the domain is the values "x" can safely take on.
well, for a logarithmic expression, it can never have an expression of 0, namely in this case, x + 4 must never be 0, since such a logarithm doesn't exist.
now, x + 4 = 0 ---> x = -4.
thus if "x" ever becomes -4, we'd end up with log₃(-4+4), or log₃(0), which is a no dice.
so the domain is all values except -4.
Answer:
A. 15:25 & C. 3:5 would be the ratios that are equivalent to 60%
Cot x = cos x csc x
1/tan x = cosx (1/sin x)
1/(sin x / cos x) = cos x / sin x
cos x / sin x = cos x / sin x
The domain of validity is all real number values of x except for sin x = 0.