Sat scores are normally distributed with a mean of 500 points and a standard deviation of 100 points. suppose you take the sat. several weeks later you receive your results which show you reached the 80th percentile for the math portion recalling that sat scores are always expressed as multiples of 10, how many points did you get on the test
a. 690
b. 600
c. 580
d. 85
e. 550

5

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.