The sum of a positive number and a negative number is always positive.

True or False​

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.