3. A watershed of 525 km2, mean annual precipitation of 950 mm/yr, and mean annual evapotranspiration of 275 mm/yr, and infiltration of zero mm/yr, will yield a a) mean annual streamflow of how many mm/yr; b) average streamflow in m3/sec

answer: 0.64

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is 1030 it's very simple math.

step-by-step explanation:

gym b charges $1.05 less per hour than gym a.