The probability that student fred sotiropulus takes history 101 next semester is 0.6 and the probability that he takes psychology 101 is also 0.6. what is the probability that he takes at least one of these two courses next semester?

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.

so, converting firstly the mixed fractions to improper fractions and then "adding".