Answer:
x + (x+1) + (x +2) + (x +3) = 326
4x + 6 = 326
4x = 320
x = 80
The second number would be 81
Step-by-step explanation:
Answer:
420 miles.
Step-by-step explanation:
You would have to be infinitely far away from a sphere in order to see exactly 50% of its surface all at the same moment. Using simple geometry, you can prove that an observer that is a distance d away from the surface of a sphere with radius R can only see a percent area A of the sphere's surface as given by the equation:
A = 50%/(1+R/d)
Where A is the area seen,
R is the earth's radius 4000 miles
And D is the distance above the earth 200 miles
50% = 0.5 in fraction
Substituting values we have
A = 0.5(1 + 4000/200)
A = 0.5(1 + 20) = 0.5 x 21
A = 10.5%
10.5% of 4000 miles = 420 miles.
Answer:
E
Step-by-step explanation:
A. x/yx * zy/yx = 2/x
B. x/y + y/z = (xz+y^2)/yz
C. x*z/z*x = 1
D. (x+y)/(y+z) = y(x+1)/y(1+z) = x+1/1+z
E. x/y / z/y = x/y * y/z = x/z
