First, use distributive property to expand whats in the brackets
second, isolate x by putting all terms with x on one side
divide both sides by -11.81 to have x on its own.
Replace y with 0 and solve for x.
x= -1.52138
Answer:
0
Step-by-step explanation:
zero divided by anything that is integral is zero and 3 in a integer
0
To solve that question we can think by the following way:
- The first letter can be any of the letters (A, C, T or G). Therefore there are 4 possibilites.
- To choose the second letter of the sequence, any letter also can be chose. So, one more time, there are 4 possibilites.
Using the fundamental principle of counting, we will find out that can be formed 
differents sequences (for example, AA, AG, TT, TG, CT...).
Know we know that, we can generalize. If I have 
elements and I must choose one of them 
times to do a sequence, the total number of sequence that I can form will be 
.
In our question, we want to know how many DNA sequence are exactly 29 letters long. As indicated above, the answer for that is 
(29 times) 
.
Therefore, there are 
DNA sequences with exactly 29 letters long.
I hope I've helped you. =D
Enjoy your studies. \o/
<span>sum of the interior angles of a polygon = (n - 2) x 180
</span>hexagon has 6 sides , in this case n = 6
so
(6-2) x 180
= 4 x 180
= 720
answer
<span>c. 720</span>
