Look at the expression below!
3 - 34 ÷ 3²
Which value is equivalent to the expression?
a.-9
b. 9
C.-6
d. 6

where is the graph? need more info

the formula for converting absorbance to transmittance goes as:

a = log (1/t)  a = 2 - log(%t)  10^a = 1/t  t = 10^-a  %t = 100(10^-a)

so at the given value of a,   a = 1.5

%t = 100(10^-1.5)

%t = 3.16%

i do not know lol

step-by-step explanation:

step 1: simplify both sides of the equation.

23x − 19x + 5 = 20

23x + − 19x + 5 = 20

(23x + − 19x) + (5) = 20 (combine like terms)

4x + 5 =20

4x+5=20

step 2:

step 2: subtract 5 from both sides.

4x + 5 − 5 = 20 − 5

4x = 15

step 3: divide both sides by 4.

answer: x =

in decimal form: 3.75