Answer:
4xy
Step-by-step explanation:
We need to subtract 2xy from 6xy, So that is,
=> 6xy - 2xy
=> 4xy
Answer:
Step-by-step explanation:

Answer:
<em>y=-6</em>
Step-by-step explanation:
<em>Geometric Sequences</em>
Any given sequence is said to be geometric if each term
can be obtained as the previous term
by a constant value called the common ratio.

or equivalently

Looking closely at the sequence 2, y, 18,-54, 162 we can try to find out if it's a geometric sequence or not. We compute the possible common ratios
and we see they both result -3. If we use r=-3 and try to find the second term (y), then
y=2*(-3)=-6
Now we compute the third term: (-6)(-3)=18
Since we got the third term as given in the original sequence.
So y=-6
Answer:
B. Complementary Angles
Step-by-step explanation:
They both make up 90 degree angle.