Express as a single logarithm.logcx + logcy

A. log_c(xy)
B. log_cxy
C. log_c
D. log_cx ? log_cy

Answer: B

Mathematics

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Find the derivative of y with respect to x, t, or ?, as appropriate.y = x4ln x - x3

A. x4ln x - x2 + 4x3 B. 4x3 - x2 C. x3 - x2 + 4x3ln x D. 5x3 - x2

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Mathematics

Solve.An airplane is flying west at an altitude of 31,424 feet. Another plane is flying northeast at an altitude of 28,510 feet. How much above the plane is the plane when their paths cross?

A. 2914 feet B. 2884 feet C. 2844 feet D. 3114 feet

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Mathematics

Write the decimal point in the correct location. 2.527 × 3.62 = 914774

A. 914,774. B. 9.14774 C. 91.4774 D. 0.914774

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Mathematics

Solve by completing the square. If the equation has no real solutions, write "no real-number solutions."x2 = 7 - 8x

A. 4 +
B. no real-number solutions
C. -4 ±
D. -4 ± 1

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Mathematics