Formula: r =(length of chord)^27 (8*height) + (height/2)* 25 points
. A bridge across a river is 18 m wide. The bridge is in
the shape of a circular arc. In the middle of the bridge,
the perpendicular supports are 3 m tall. What is the
radius of the arc?
A. 3 m
C. 15 m
B. 12 m
D. 18 m
D
18 m
ОА

the square root of what number? if you add that, then someone will probably answer the question.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10