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EastWind [94]
3 years ago
9

help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics
2 answers:
Oxana [17]3 years ago
6 0

a = 2 minutes per lap

b= 2.25 minutes per lap

c= 2.5 minutes per lap

d= 2.8 minutes per lap

e= 2.5 minutes per lap

f= 2.5 minutes per lap

Svetach [21]3 years ago
4 0
A. 2 mpl
b. 2.25 mpl
c. 2.5 mpl
d. 2.8 mpl
e. 2.5 mpl
f. 2.5 mpl
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HEYA! <3

Explanation :

<u>GIVEN </u> :

  • f(x) = 2x - 6

<u>TO </u><u>FIND</u><u> </u> :

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<u>S</u><u>OLUTION </u> :

FOLLOW THESE THREE STEPS :

  • LET Y = f(x)

\longrightarrow \tt{y = 2x - 6}

\longrightarrow{ \tt{ \: 2x - 6 = y}}

  • MAKE X A SINGLE TERM IN LHS SIDE

\longrightarrow{ \tt{2x = y + 6}}

\longrightarrow{ \tt{x =  \frac{y + 6}{2} }}

  • INTERCHANGE THE VALUE OF X AND Y

\longrightarrow{ \tt{y =  \frac{x + 6}{2} }}

Hence ,

\boxed{ \boxed{ {f}^{ - 1} (x) =   \sf{ \bold{ \frac{x + 6}{2} }}}}

Hope I helped!

Have a wonderful day / night !

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