The lens labelled (A) has radii 16.3cm and 11.6cm. Using the shape of the lens to assign the signs of the radii, calculate the focal length of the lens. Give your answer with the correct positive or negative sign using the usual convention for lenses.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada