What is 7.441 rounded to the nearest 10ths, or first decimal place

7.4

In order to round you look at the number after the one you want to round. If it is more than five it goes up one, if it is less than five it stays the same. Since the number after the four is also a four it stays the same.

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.