The grand canyon skywalk at eagle point is a horseshoe shaped steel frame with
glass floor looking down to the grand canyon below. the skywalk extends 70 feet
over the canyon rim and is 10 feet wide. the walkway consists of a semicircle with a
straight portion on each side as indicated in the diagram below.
path width
10 feet
outer circle
65 feet diameter
imer carcle:
45 feet diameter
65 feet
70 feet
in order to prevent anyone
from falling over the sides, a new railing needs to be installed. how
many linear feet of railing are needed to line both sides of the walkway?
(round your final answer to 1 decimal place and any intermediate
calculations to 2 decimal places. be sure to include units.)

The Grand Canyon Skywalk at Eagle Point is a horseshoe shaped steel frame with

glass floor looking down to the Grand Canyon below. The Skywalk extends 70 feet

over the canyon rim and is 10 feet wide. The walkway consists of a semicircle with a

straight portion on each side as indicated in the diagram below.

Path Width

10 feet

Outer Circle

65 feet diameter

Imer Carcle:

45 feet diameter

65 feet

70 feet

In order to prevent anyone

from falling over the sides, a new railing needs to be installed. How

many linear feet of railing are needed to line both sides of the walkway?

(Round your final answer to 1 decimal place and any intermediate

calculations to 2 decimal places. Be sure to include units.)

Step-by-step explanation:

1/5

step-by-step explanation:

the dice has 6 sides and there is only one 5 in a dice.

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!