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/
Answer:
10
Step-by-step explanation:
Let the no. of sodas be x
Price of each soda = $2
Therefore, no . of sodas you can buy = $2x
2x=20
=>x=
=>x=10
you can buy 10 sodas
Answer:
4930
Step-by-step explanation:
10 + 7
17 x 20 x 12
4080
10 + 7
17 x 5 x 10
850
850 + 4080
Area = 4930
Hope this helped!
Answer:
x² - (4 ≤ 5)
Step-by-step explanation:
(I have x representing the number that is squared, it might be a different letter on your options, but regardless it will be the same general answer. You also may not need the parentheses around the 4 ≤ 5)
Difference means subtraction so we know that the second number/group of numbers will be subtracted from the first that is listed.
Next, if you are squaring any number it's going to have the little 2 to the right of it. That's what that means.
Then, we look at that last bit. <em>"Four is less than or equal to five."</em> This means exactly how it sounds. To write this we need the symbol ≤. This symbol means less than or equal to. You would would but the 4 in front and the 5 in back to get 4 ≤ 5.
Now we just put it together. It tells us that 4 ≤ 5 is being subtracted from a number squared. So this means that a number squared needs to be first, and because difference means subtraction, we would subtract 4 ≤ 5 from that. A number squared can be represented by any letter variable, but for this example, I will use x.
This leaves you with x² - (4 ≤ 5)
I hope this helped :)
Answer:
All real number greater than equal to zero.
Step-by-step explanation:
The function is given by
The domain is defined as the input values so that the function is well defined.
here, the values of x should be all real number and zero also.
So, the correct option is (d).
