cool8844
28.10.2020 •
Mathematics
On her first science test, Whitney scored a 92%. On the second test, she scored an 80%. What is the approximate percent of decrease in her score?
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Ответ:
EXPLANATION
We were given the quadratic function,
The above function is a quadratic function in
likewise
is the general quadratic function in
where
are the coefficients of the variable terms and
is the constant term.
When we compare
to the general quadratic formula, we have the coefficients and the constant to be,
The correct answer is C