Answer:
dy/dx=1
Hope this helps! Please vote brainliest! :)
The lowest score you can earn on the next test and still achieve an average of at least an 88 is 107
<h3>Mean of data</h3>
Mean is the average of numbers.
Mean = sum of data/sample size
Let the lowest score be "x" such that;
Mean = 74+78+90+91+x/5
88 = 74+78+90+91+x/5
88(5) = 74+78+90+91+x
440 = 74+78+90+91+x
440 = 333 + x
x = 440 - 333
x = 107
Hence the lowest score you can earn on the next test and still achieve an average of at least an 88 is 107
Learn more on mean here: brainly.com/question/20118982
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<u>Answer:</u>
<u>Answer:options A is correct </u><u>answers</u><u>.</u>
<h3>
<u>please</u><u> </u><u>follow</u><u> </u><u>me</u></h3>
