An observer on the ground is x meters from the base of the launch pad of a rocket, which is at the same level as the observer. a few seconds after the rocket takes off vertically, the observer sees its tip at an angle of q° from the horizontal. how far above the ground is the tip of the rocket at that instant? assume that the ground is level.
a. x/tan q
b. x/ sin q
c. x tan q
d. x sin q
e. x cos q
pls 30 points

x tan q

Step-by-step explanation:

Refer the attached figure

An observer on the ground is x meters from the base of the launch pad of a rocket i.e. BC = x

The height of the rocket is AB

The observer sees its tip at an angle of q° from the horizontal.i.e.∠ACB = q°

In ΔABC

We will use trigonometric ratio

So, the height of the rocket is x tan q.

So, Option C is correct.

Hence the tip of the rocket is  x tan q far above the ground

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

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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