Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.ln x + 3ln y

A. ln 
B. ln (x + 3y)
C. ln 3xy
D. ln xy3


Answer: D

Mathematics

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Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 3, u '(1) = -7, v(1) = 6, v '(1) = -2. (uv) at x = 1

A. 48 B. 36 C. -48 D. -33

Mathematics

Find the unknown value.What percent of 70 is 56?

A. 120% B. 125% C. 75% D. 80%

Mathematics

Divide.8 ÷ 

A. -20
B. -4
C. 20
D. - 

Mathematics

Use synthetic division to find the quotient.

A. x3 + 3x2 + 2x - 1 B. x3 + 2x2 + 2x + 1 C. x3 + 2x2 + 4x D. x3 + 2x2 + 4x + 3

Mathematics