(a) Complete the last column of the following table by calculating the estimated number of messages per day that each user receives. Round to the nearest tenth
Year
Number of users Messages per day Messages per person
(in millions) (In billions)
per day
2012
2,852
220.8
2019
3,192
243.9
2021
3,480
275.7

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Step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.