Answer:
See below
Step-by-step explanation:
By the Triangle Inequality Theorem, if given side lengths
,
, and
, where
is the longest side, then 
<u>Problem A</u>
This set of side lengths creates a triangle since 
<u>Problem B</u>
This set of side lengths creates a triangle since
, which is known as an equilateral triangle since all of its side lengths are equal to each other
<u>Problem C</u>
This set of side lengths creates a triangle since 
Step-by-step explanation:
178.25
The number 5 is in the place of one's so the value of 5 is 5
Answer:
<u>For</u><u> </u><u>A</u>

• The equation above has a common bracket "(x + 1)". So, let's first factorise out that bracket:

• now in the second bracket, the common factor is x and 2.

• Final answer;

<u>For</u><u> </u><u>B</u>

• In the equation, the common bracket is (x + 2).
So let's first factorise it out:

• In the second major bracket, the common bracket is (x - 1). so factorise it out:

• Final answer:

Answer:
136
Step-by-step explanation:
7*5=35
35+35=70
1/2*6*4=12
12+12=24
6*7=42
70+42+24=136
sorry if it is wrong.