Wolfgang and heinrich worked as electricians at $14 and $12 respectively. one month wolfgang worked 10 hours more than heinrich. if their total income for the month was $3520, how many hours did each work during the month?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree