Answer:
ttgggggggryrqyyrqrurquwjtwtjatj
The sampling technique used when A scientist chooses twenty people at random from each class is stratified sampling.
<h3>What is
stratified sampling?</h3>
Stratified sampling can be described as the type of sampling method whereby the total population is been divided into smaller groups or strata.
This usually done to complete the sampling process, hence The sampling technique used when A scientist chooses twenty people at random from each class is stratified sampling.
Read more on the stratified sampling here:
brainly.com/question/1954758
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It is B.
The underlined ≥ symbols a closed circle, and any number bigger than 3 if you multiply it with 4 and solve the equation, your answer would be reasonable
Use the pic and solve the COS x-sin x/COS x+ sin x part
comment if there's something u don't understand
Answer:
C
Step-by-step explanation:
because triangle don't work that way
