Consider the functions f(x) = 3x − 2 and g(x) = x2 − 1. what is the value of f[g(5)]?

312

70

168

−1

The correct option is 2. The value of f[g(5)] is 70.

Step-by-step explanation:

The given functions are

We need to find the value of f[g(5)].

First of all find the value of g(5). Substitute x=5 in the function g(x).

The value of g(5) is 24.

              ..... (1)

Substitute x=24 in the function f(x).

          .....(2)

Using (1) and (2) we get

The  value of f[g(5)] is 70. Therefore the correct option is 2.

7

step-by-step explanation:

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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