28-04-2015
Mathematics

contestada

what is the log 5x=log (2x+9)

Respuesta :

crisforp crisforp

28-04-2015

5x = 2x + 9, where 5x > 0 and 2x + 9 > 0 ;
Then, 3x = 9 ;
Then, x = 3 ;
Verify : 5 × 3 = 2 × 3 + 9 ;correct !
5 × 3 > 0 ; correct !
2 × 3 + 9 > 0; correct !

Answer Link

Otras preguntas

Write the ratios for sin M, cos M, and tan M. Give the exact value and a four-decimal approximation. sin M = (Type an exact answer in simplified form. Type an i

Write the composite function in the form f(g(x)). [Identify the inner function u = g(x) and the outer function y = f(u).] (Use non-identity functions for f(u) a

true/false. to paraphrase a text from shakespeare, one must restate the text .

Can a simple directed graph G = (V, E) with at least three vertices and the property that deg+(v) + deg¯(v) = 1, Vv € V exist or not? Show an example of such a

The role of the Australian Government in ensuring that the market meets the criteria of a mixed economy like Australia is necessary in supporting a healthy econ

An undamped spring-mass system is given a base excitation of y ˙ (t)=20(1−5t). If the natural frequency for the system is ω n =10 s −1 , determine the maxim

rumelt's describes the strategy work he did with at&t in 1984-85 as a waste. what was a primary reason for this?

what is the typical sequencing of needs in maslow's hierarchy

Consider the subtraction problem, 2013 - 40, for which Allie gets the answer 1073. What is most likely Allie's misunderstanding, and, if uncorrected, what woul

double heightcm = 2.54 * heightin; if(true) double bmr = (10.0 * heightin) (6.25 * weightkg) - (5.0 * age) s;