Answer:
John Brown invented the telescoping bolt, then integrating the bolt and barrel shroud into what is known as the pistol slide. Browning's telescoping bolt design is now found on nearly every modern semi-automatic pistol, as well as several modern fully automatic weapons.
Explanation:
I'm don't know which John brown you're talking about but I'm guessing this on. The one that I research was the one that started browning. Browning is a firearm and ammunition company.
Answer:
Subsistemas:En otras palabras, un subsistema es un conjunto de elemento interrelacionados que, en sí mismo, es un sistema, pero a la vez es parte de un sistema superior.
Principios:Primer momento de la existencia de una cosa.
Explanation:
Lo siento, solo hice un par, hablo inglés y no sé mucho español
Answer:
I agree. I think that the system could greatly benefit from a change in how things are done.
Explanation:
Answer:Some individuals may be natural good at maths or may be just smart kids who are good with mathematics
Explanation:Some students may be intelligent or good at maths which means the shoe size will not be the cause of their quantification skills.
A confounding variable refers to another variable that you may have not take notice of but which is very likely to act on the variable you are trying to measure and make that change you are looking for , its an extra variable. It can mess up your experiment and give you result that are not caused by what your projected. They can assume a correlation that doesn't exist and insert bias in your study. For this reason you have to know these variable before you start your research or study in order to avoid them.
