bewellplus.gsu.edu
linsey9 linsey9
  • 21-08-2014
  • Mathematics
Answered

Suppose that the functions s and t are defined for all real numbers x as follows.

s(x) = 2x+4

t(x) = 5x

Write the expressions for (s+t)(x) and (s-t)(x) and evaluate (s×t)(x)

Verified Answer :

Anonymous Anonymous
  • 24-08-2014

\(s(x)=2x+4;\ D_s=\mathbb{R}\\\\t(x)=5x;\ D_t=\mathbb{R}\\\\D_s=D_t\\\\(s+t)(x)=s(x)+t(x)=2x+4+5x=7x+4\\\\(s-t)(x)=s(x)-t(x)=2x+4-5x=-3x+4\\\\(s\times t)(x)=(2x+4)\times5x=10x^2+20x\)

Answer Link

Related Questions

what is 512 plus 38
A competent person is responsible for making inspections of excavations including the surrounding areas and protective systems
Why do proper nouns begin with a capital letter
35 million divided by 12
When you solve a problem involving money what can a negative number represent
is oxygen an biotic or abiotic factor
justin has 3x12 songs jim has 5x4 songs if they both have the same number of songs how many songs do they each have
The Tigers are based in Cleveland a True b False
a large portion of chinas food comes from the
Japans nationalism and rise as an imperial power can be traced backed to what