The relative aperture, or f-stop, of 23.5 mm diameter lens is directly proportional to the focal length of the lon. If 260-mm focal length an stop of 6.3, find the f-stop of 23.5mm diameter lens with a focal length of 90mm.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

overpriced

step-by-step explanation:

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.

i dont know

step-by-step explanation:

umm. i dont know