Using it's formula, considering the results, it is found that the accuracy of the test is of 0.95 = 95%.
<h3>What is the accuracy of a test?</h3>
It is given by the <u>number of correct results divided by the number of tests</u>.
In this problem, there were 80 tests, of which 80 - 2 - 2 = 76 had correct results, hence the accuracy is given by:
A = 76/80 = 0.95 = 95%.
More can be learned about the accuracy of a test at brainly.com/question/3128152
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When you add 8 to the end of a function formula, the graph moves UP 8 units. This is often called either a translation or vertical shift.
Answer:
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Step-by-step explanation:
(It's not 4 though, I'm sorry)
B² - 4ac
= 8² - 4*(-2)*(-9)
= 64 - 72
= -8
Like of segment being r, calculated in the picture is the length
