Eddie built the ramp shown to train his puppy to do tricks.
1 answer:
The surface area of the trapezoidal prism is: 4,190 in.².
<h3>What is the Surface Area of a Trapezoidal Prism?</h3>Surface area = (b1+b2)h + PH, where:
- Length of the base of the trapezoid (b1) = 20 in.
- Length of the base of the trapezoid (b2) = 60 in.
- Height of the trapezoid (h) = 15 in.
- Perimeter of the trapezoid (P) = 60 + 25 + 20 25 = 130 in.
- Height of the prism (H) = 23 in.
Plug in the values
Surface area = (b1+b2)h + PH = (20 + 60)15 + (130)(23)
Surface area = 4,190 in.²
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We have that
<span>y = -x</span>²<span>+8x
we know that
when the ball hint the ground is the x-intercepts of the graph
the x-intercepts is for y=0
so
0=-x</span>²+8x--------> x²-8x=0----> x*(x-8)=0
the solution is
x=0
x=8
the x intercepts are the points (0,0) and (8,0)
the distance between the x intercepts points =[8-0]-----> 8 ft
the answer is
8 ft
see the attached figure
<span>y = -x</span>²<span>+8x
we know that
when the ball hint the ground is the x-intercepts of the graph
the x-intercepts is for y=0
so
0=-x</span>²+8x--------> x²-8x=0----> x*(x-8)=0
the solution is
x=0
x=8
the x intercepts are the points (0,0) and (8,0)
the distance between the x intercepts points =[8-0]-----> 8 ft
the answer is
8 ft
see the attached figure