The loudness of sound, measured in decibels (dB), is calculated using the formula LaTeX: L=10\log\left(\frac{I}{10^{-12}}\ri ght)L=10log(I10−12), where L is the loudness, and I is the intensity of the sound. What is the intensity of a fire alarm that measures 125dB loud? Round your answer to the nearest hundredth. Intensity =

answer: haha (: i’ll go see what it is

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

add a pic of the graph, then ill edit this "answer" and solve it for you : 3

step-by-step explanation: