Solve and check. Use the square root principle to eliminate the square.(x - 7)2 = 4
A. ±2
B. 5, -9
C. 9, 5
D. 11
Answer: C
Mathematics
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Establish the identity.
= cot ? - cot ?
What will be an ideal response?
Mathematics
Divide.1 ÷ (6 + 8i)
A. 
- 
i
B. - 
+ 
i
C. - 
- 
i
D. 
+ 
i
Mathematics
Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 8x - 5 = 0
A. {-4 ± 2
}
B. {4 ± 
}
C. {-1 ± 
}
D. {-4 ± 
}
Mathematics
Divide.
A. 76 R 56 B. 76 R 5 C. 73 R 1 D. 73
Mathematics