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gardinerr410
04.08.2019 •
Mathematics
9out of 25 students finished your homework early on tuesday what percentage of the class finish their work early
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Ответ:
9(4)/25(4)
36/100
36/100 = 0.36 = 36%
36% is your answer
hope this helps
Ответ:
Answer
5 and -4
Explanation
If the two triangle are congruent then they have the same area.
20 = x² - x
x² - x - 20 = 0
x² - x + (1/2)² = 20 + (1/2)²
(x - 1/2)² = 20.25
x - 1/2 = √20.25
x - 1/2 = 4.5 or x - 1/2 = - 4.5
x = 4 1/2 + 1/2 x = -4 1/2 + 1/2
= 5 = -4
The values of x are 5 and -4.