25-03-2015
Mathematics

contestada

can you help me ? 20^n-2+6.5=87

Respuesta :

Panoyin Panoyin

25-03-2015

20n - 2 + 6.5 = 87
20n + 4.5 = 87
   -4.5 -4.5
   20n = 82.5
      20    20
   n = 4.125
or
20^n - 2 + 6.5 = 87
20^n + 4.5 = 87
   -4.5    -4.5
   20^n = 82.5
   n ≈ 1.037

Answer Link

Otras preguntas

Determine the exact value of k so that the quadratic function f(x) = x2 - kx + 5 has only one zero.

name three types of conservation areas in south Africa for conserving terrestrial flora and fauna

Which statement is true? A.|–8|< |8| B.|–2| > 1 C.|–7| = –7 D.|12| > |–15|

in many cells, the structure that controls the cell's activities is the

what is 16/48 reduced to lowest terms

True or false energy is the capacity to do work

The volume of a cardboard box is 729,000 centimeters squared. The box is 90 cm wide and 90 cm high. What is the length of the box? (Also, how do I solve this??

identify the property that justifies each statement. 1. m=n, so n=m. 2.

What is 3 divided by 387 with a magnitude estimate

what are the 4 features of buddhism?