Find the mistake, then find the correct answer.Solve for x: 5x2 - 7x + 1 = 0line 1 x = 
line 2 x = 
line 3 x = 
What will be an ideal response?
| line 1 should be | x =  |
line 3 should be x =
Mathematics
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Establish the identity.tan 2 u (1 + cos 2u) = 1 - cos 2u
What will be an ideal response?
Mathematics
Solve.Allan's 4 quiz scores in his math class are 90, 90, 81, and 77. What score does he need to obtain on his exam to average an 85 if an exam counts as much as two quizzes?
A. 79 B. 87 C. 68 D. 86
Mathematics
Add or subtract.5
- 9
+ 2
+ 7
A. 7
- 2
B. 7
- 2
C. 7
- 2
D. 5
Mathematics
Write the following as an algebraic expression in u, u > 0.tan 
A. 
B. 
C. 
D. u2
Mathematics