Solve.log4(6x - 7) = log4(4x + 2)
A. 
B. ?
C. 
D. {-5}
Answer: A
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Find the surface area of the surface S.S is the portion of the paraboloid z = 81 - x2 - y2 that lies above the ring 1 ? x2 + y2 ? 25 in the 
A. 
[101
- 5
]
B. 
[101
- 5
]
C. 
[101
- 5
]
D. 
[101
- 5
]
Tell if the square root is rational, irrational, or not a real number. If the square root is rational, find the exact value; if the square root is irrational, write the approximative value rounded to 2 decimal places.
A. irrational, 7.94
B. rational, 3
C. not a real number
D. irrational, -7.94
Factor completely.u2 - 3uv - 54v2 = (u + 6v)( 
)
A. u - 9v B. u + 9v2 C. u + 9v D. u - 9
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.-40x3 + 42x2 + 10x
A. -2(5x2 + 1)(4x - 5) B. x(5x + 1)(-8x + 10) C. x(-10x - 2)(4x - 5) D. -2x(5x + 1)(4x - 5)