How far is the top of the lampost from the tip of its shadow?

About 14.58 ft

Step-by-step explanation:

We have an angle, the side opposite that angle, and the hypotenuse of that triangle. If you remember SOH CAH TOA, the right trig ratio for this problem is sine. In this case, . We want to solve for x, so we can multiply both sides by x to get and then divide both sides by to get

So, the top of the lamppost is about 14.58 ft from the tip of its shadow

1.677

step-by-step explanation:

i'm not good at explaining stuff but if you need an answer i'm here for you.

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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