Classify the following triangle. check all that apply. 11.4, 9, 7, a. acute b. isosceles c. right d. equilateral e. obtuse f. scalene

 The correct options are (A) Acute and (F) Scalene.

Step-by-step explanation:  Given that the lengths of three sides of a triangle are 11.4 units, 9 units and 7 units.

We are to select all the correct classifications of the given triangle.

Since the lengths of all the three sides are different, so all the three sides are non-congruent.

So, the given triangle is a SCALENE triangle.

Also, we have

So, we have

(11.4)² < 9² + 7².

That is, the square of the length of the largest side is less than the sum of the squares of the lengths of two smaller sides.

Therefore, the given triangle is an ACUTE-angled triangle.

Thus, the given triangle is ACUTE and Scalene.

Options (A) and (F) are correct.

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