Arouter is used to cut locating notches on a printed circuit board. the vibration level at the surface of the board as it is cut is considered to be a major source of dimensional variation in the notches. two factors are thought to influence vibration: bit size (a) and cutting speed (b) are thought to influence the vibration level. two bit sizes (1/16 and 1/8 inch) and three speeds (40, 60, and 90 rpm) are selected, and four boards are cut at each set of conditions. the vibration level is measured on each board cut.

(a) what is the response variable?

(b) what is (are) the factor(s)

(c) what are the levels of each factor?

(d) how many replicates are there?

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:

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

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step-by-step explanation: