At which root does the graph of f(x) = (x + 4) 6(x + 7)5 cross the x-axis?
0 -7
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the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is  .

Step-by-step explanation:

We have , f(x) = (x + 4) 6(x + 7)5 i.e.. We need to find root for which the graph of cross the x-axis i.e. value of y or f(x) = 0. Let's solve this:

⇒

⇒

⇒

Which means either or , . That means the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is or . ∴ From given options , the root for which the graph of cross the x-axis i.e. value of y or f(x) = 0 is  .

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

related questions

the answer would be c:   ax + b = ax + c

step-by-step explanation: