Is she the family member on the others family side or is it like harder
Answer:
B) irrational. Since an irrational number cannot equal a rational number.
The premise that c is rational is false
Step-by-step explanation:
The assumption that c is rational means that the difference c-a must be rational. That difference is b, so b=c-a would mean that b must be rational. But b is defined to be irrational. Since an irrational number cannot equal a rational number, a contradiction arises and the assumption that c is rational must be false. Therefore the sum (c) must be irrational. (B)
Answer:
∠N and ∠Y
Step-by-step explanation:
When two triangles are congruent then there corresponding parts ( angle or sides ) are also congruent or equal, ( CPCTC )
In triangles MNO and XYZ,
Side MN, NO and OM are corresponding to XY, YZ and ZX respectively,
And, angles M, N and O are corresponding to angles X, Y and Z respectively,
Thus, if ΔMNO ≅ ΔXYZ
By CPCTC,
MN ≅ XY
NO ≅ YZ
OM ≅ ZX
Also, ∠M ≅ ∠X, ∠N ≅ ∠Y and ∠O ≅ ∠Z
Hence, THIRD OPTION is correct.
We know the following relationship:

The
domain of a function are the
inputs of the function, that is, a function

is a relation that assigns to each element

in the
set A exactly one element in the
set B. The set A is the domain (or set of inputs) of the function and the set B contains the range (or set of outputs).Then applying this concept to our function

we can write its domain as follows:
1. D<span>
omain of validity for 
:
</span>
When:

?
when:
where k is an integer either positive or negative. That is:

To match this with the choices above, the answer is:
<span>
"All real numbers except multiples of
"
</span>
2. which identity is not used in the proof of the identity 
:
This identity can proved as follows:

The identity that is not used is as established in the statement above:
<span>
"1 +cos squared theta over sin squared theta= csc2theta"
Written in mathematical language as follows:
</span>

<span>
</span>