Rectangle B is shown below. Nadia drew a scaled version of Rectangle B using a scale factor of \dfrac15 5 1 start fraction, 1, divided by, 5, end fraction and labeled it Rectangle C.

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What term makes it inconsistent y=2x - 4