A water tank is being filled with water. Before water is pumped in, the water level in the tank is 13 inches high. A. After 20 minutes, the water level is 56 inches high.

If t represents the time in minutes and h represents the water level, which of the following equations can be used to model this situation?

A. h=43+13t
B. h=13t+2.15
C. h=2.15t-13
D. h=2.15t+13

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

explanation:

step-by-step explanation:

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the 14th row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100