A chemical engineer has tested 56 water samples. These samples make up 25% of the total number of samples that need testing. Sel
ect from the drop-down menu to correctly identify the total number of water samples that need testing. _____- There are a total of water samples to be tested. A: 1.4 B: 14 C: 168 D: 224
Step-by-step explanation: <u><em>the length of a varies string varies inversely as the frequency of its vibrations. A violin string 10 inches long vibrates at a frequency of 512 cycles per second. Find the frequency of an 8-inch string.</em></u>