In order to select a sample of undergraduate students in the united states, a simple random sample of four states is selected. from each of these states, a simple random sample of two colleges or universities is then selected. finally, from each of these eight colleges or universities, a simple random sample of 20 undergraduates is selected. the final sample consists of 160 undergraduates. what sampling technique is being used?

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

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step-by-step explanation:

345

step-by-step explanation:

a is the right answer