(180 * 2) * 3 + 200 * 2
360 * 3 + 400
1080 + 400 = 1480 feet
Answer:
1/61.8 its right valu of x
Step-by-step explanation:
here we find the first valu and second is also same but there isx so cross the eqal side and get same answer
You answer is correct. For example
Even:
16+4 = 20
194+4=198
Odd:
13+4=17
235+4=239
Answer:
10.69
Step-by-step explanation:
We must first know that the angle of refraction is given by the following equation:
n_water * sin (A_water) = n_air * sin (A_air)
where n is the refractive index, for water it is 1.33 and for air it is 1.
The angle (A) in the air is 22.8 °, and that of the water is unknown.
Replacing these values we have to:
1.33 * sin (A_water) = 1 * 0.387
sin (A_water) = 1 * 0.387 / 1.33
A_water = arc sin (0.2907) = 16.9 °
now for the tank depth:
h = D / tan (A_water)
D = 3.25
Replacing
h = 3.25 / tan 16.9 °
h = 10.69
Therefore the depth is 10.69 meters.
