Dates can be expressed as AD, BC, BCE (before common era), and BP (before present).

## What does BP mean in time reference?

Before Present Before Present (BP) years, or years before present is a time scale used mainly in archaeology, geology, and other scientific disciplines to specify when events occurred before the origin of practical radiocarbon dating in the 1950s.

## What is Cal BC?

The designations cal BP, cal BCE, and cal CE (as well as cal BC and cal AD) all signify that the radiocarbon date mentioned has been calibrated to account for those wiggles; dates which have not been adjusted are designated as RCYBP or radiocarbon years before the present.

## Is Calculus BC harder than AB?

BC Calculus includes everything in AB Calculus, plus a few extra topics. Youll actually get an AB Calculus sub-score when you take the BC exam. So Calculus BC is not necessarily more difficult than Calculus AB. BC Calculus has to move faster because it covers more material, which is what makes it more intense than AB.

## Is failing an AP exam bad?

Basically, nothing happens if you fail an AP exam. Colleges do not take a look at the AP exam as the only a criterion for accepting or rejecting a student. Just because failing your AP exam will still get you to college doesnt mean that you should not do your best to get a passing score.

## Is AB easier than BC?

BC Calculus includes everything in AB Calculus, plus a few extra topics. Youll actually get an AB Calculus sub-score when you take the BC exam. So Calculus BC is not necessarily more difficult than Calculus AB. BC Calculus has to move faster because it covers more material, which is what makes it more intense than AB.

## Do colleges prefer Calculus AB or BC?

While different colleges have their own requirements, the general rule of thumb is that the AB exam counts as one semester of college calculus, and the BC exam qualifies as two semesters. Students who anticipate having to take two or more core math classes may be better off in the BC class.

## What can C-stand for?

Celsius/Centigrade. C. symbol for the speed of light (in a vacuum, 299,792,458 meters per second) C. Click.