aallyssabrown0120
19.01.2021 •
Mathematics
The solution set for x^2 -x -56=0 is
A.{7,8}
b. {-7}
c. {8}
d. {-7,8}
e. {7.-8}
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Ответ:
therefore,
3x - 5 = x + 1
2x = 6
x = 3
sub x into AD, which is 3x-5
= 3(3) - 5
= 9 - 5
= 4
therefore AD is 4 units