I think it is the answer, because when it says it is talking about it as a noun or a subject.
maths and science can be used in medicine and technology. therefore, with this knowledge, people can learn to:
<span>perform surgeries and create implants e.g. moulds for hip operations</span>
invent gadgets and tool
come up with correct formulas
help reduce negative environmental factors e.g. pollution and global warming.
I hope these ideas and examples helped :)
In expository writing, a topic sentence is a sentence that summarizes the main idea of a paragraph. It is usually the first sentence in a paragraph. What is your question regarding a topic statement?
Answer:
d) 10
Explanation:
Caesar cipher is code that uses the shift of the letters of alphabet. Key size simply denotes the number of the letters shifted.
For example, let's take the letter A. If key size iz 3, A becomes D (third letter down the alphabet). If the key size is 6, A becomes G (sixth letter down the alphabet).
So to answer this question, we need to decode this code. That means we do reverse process; we go up the alphabet, and shift every letter in the code for the key size.
If the key size is 3, we shift every letter of the code by 3 up the alphabet. So, Z becomes W, E becomes B etc. We end up with: WBALMMVYANLAYLZBSA which obviously doesn't make any sense.
If the key size is 5, similarly, we end up with: UZYJKKTWYLJYWJXZQY.
If the key size is 7, we end up with: SXWHIIRUWJHWUHVXOW.
And finally if the key size is 10, we end up with: PUTEFFORTGETRESULT (PUT EFFORT GET RESULT), which is the only option that makes sense.