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IRISSAK [1]
3 years ago
6

If f(x)= 1/3x and g(x)=3x, then what are g * f (x) and g*f(1/2)

Mathematics
1 answer:
MrMuchimi3 years ago
3 0
The correct answer is:  3)  " x ;  1/2" .
_____________________________________________________
Explanation:
_____________________________________________________
Question 1) 

g [ f(x) ] = ? ;

→ Given:  " f(x) = 1/3 x " ;

→ Given:  " g(x) = 3x " ;  
__________________________________
g [ f(x) ] = g(1/3 x) = 3(1/3 x) = 1x = "x" .
__________________________________
Question 2)

g [ f(1/2) ] = ? ; 
__________________________________
→  Given:  " f(x) = 1/3 x " ;

→  f(1/2) = (1/3) * (1/2) = (1*1) / (3*2) = (1/6) ;

→  g [ f(x) ] =  

          g(1/6) = 3* (1/6) = (3/1) * (1/6) = (3*1) / (1*6) = 3/6 = (3÷3) / (6÷3) = " 1/2 "  .
___________________________________________________________ 


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Answer:

x = 1/7

Step-by-step explanation:

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How do you do 4x - 9 = 6x - 13? what do you subtract from both sides?
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On a math test, 30 students earned a B. This number is exactly 40% of the total number of students in the class. How many studen
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3 years ago
The area of the regular pentagon is 6.9 cm2. What is the perimeter? 2 cm 5 cm 10 cm 20 cm
disa [49]

Given

Area of the regular pentagon is 6.9 cm².

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To proof

Formula

Area of regular pentagon is

= \frac{1}{4}\sqrt{5(5+2\sqrt{5})}\ a^{2}

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area of regular pentagon = 6.9 cm²

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Now put

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put in the above equation

\frac{6.9\times 4}{\sqrt{5(5+2\times2.24)}}=a^{2}\\\frac{27.6}{\sqrt{47.4}}=a^{2}\\\frac{27.6}{6.88}=a^{2}

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Thus

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therefore the perimeter of the regular pentagon = 10cm

option c is correct

Hence proved









3 0
3 years ago
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