A 135-dB is 60-dB louder that 75-dB.
The question says "how much louder" so for these kinds of questions you subtract.
good luck!
The magnitude of a vector is the square root of its components squared. When you square a negative number, you will always get a positive number. Its like speed of your car. It will always be positive (or 0) whether you are moving forward or you are in reverse gear or stationary.
Unlocking the mysteries of deep-sea ecosystems can reveal new sources for medical drugs, food, energy resources, and other products. Information from deep-ocean exploration can help predict earthquakes and tsunamis and help us understand how we are affecting and being affected by changes in Earth's environment.
R because A-B has 7R but C-d only has 6r so you need to add another r
Sound and light, as well as all other types of mechanical and electromagnetic
radiation, travel as waves. They all carry energy from place to place.