Pleassse meee

if tan theta=-3/8, which expression is equivalent to cot theta? 1/-3/8 , -3/8+1, square root of 1+(-8/3)^2, (-3/8)^2+1

  cot(theta) = 1/(-3/8)

Step-by-step explanation:

cot(theta) = 1/tan(theta) = 1/(-3/8)

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Comment on the answer

The parentheses are required. With them, the value is cot(theta) = -8/3. Without them, the value is cot(theta) = -1/24, which is not correct.

Even if the answer is typeset, it must be done in such a way as to make it clear what the numerator and denominator are:

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.