Answer:
<h2>1, 3 and 4 are true statements.</h2>Step-by-step explanation:
Notice that the given triangle has all three side different, that means it's an scalene triangle.
Additionally, the triangular inequality states that the sum of two sides of a triangle must be greater than the third side, that is
So, the first choice is also correct.
Then, we use thes triangular inequalities to find the third true statement.
We know that and
Also,
Therefore, , which means side DF must be between 5 and 13.
The third true statement is the third option.
Answer:
Step-by-step explanation:
Given
See attachment
To answer this question, we start by equating the denominators of each option to 0; then, solve for x
(a):
This gives
Set the denominator to 0
Solve for x
Factorize:
This implies that:
From above, one of the values of x is 7.
This implies that x = 7 is an excluded value for this quotient.
<em>Other options do not need to be checked, since there is only one answer.</em>
