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Explain how to estimate the length of an object

Step-by-step explanation:

for short lengths try your hand span.

for something a bit longer try using the length of your feet.

for something even longer try using your arm span or steps.

Step-by-step explanation:

To measure something accurately you should use standard units

You should use different units for different lengths:

millimetres (mm) are good for very small lengths - like the width of a pencil or your finger

centimetres (cm) are good for something a bit longer - like the length of a pencil or a book

metres (m) are good for something even longer - like the width of a room or the length of building

kilometres (km) are good for longer distances - like the distance between home and school, or between different towns

You should use proper instruments to measure accurately, like a ruler, tape measure, metre stick or trundle wheel.

could you reply to this with the question so i can ?

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

rauschg · hand

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