Explain the meaning of the following

1) A scale on a map is 1mm:20 miles.

2) A scale on a drawing is 1in:5 feet.

3) The scale for a model house is 1:12.​

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.