## anonymous 4 years ago the choice answers are 6 sq feet 5 sq feet, 4 sq feet or 21 sq feet

1. anonymous

hi it gives several choices

2. ash2326

Jessica reply to the same question. don't post the choices as another post. we need the length also to find the area, is that given??

3. anonymous

ok sorry,this is new to me.nervous and unsure the question is in regards to slopes and no there is no length

4. ash2326

5. ash2326

*here

6. anonymous

consider this the slope of the entrance ramp to a doorway.G is at (0,2)and h is at(7,0)if each space on the graph paper represents 1 foot how tall is the ramp?

7. ash2326

|dw:1327944595189:dw|see this

8. anonymous

yes

9. ash2326

we have to find the distance GH, we know that the distance between two points with coordinates (x2,y2) and (x1,y1) is $D=\sqrt{(x2-x1)^2+(y2-y1)^2}$ here one point is 7,0 and other is 0,2 so $D=\sqrt{(7-0)^2+(0-2)^2}$ we get $D=\sqrt{49+4}$ or$D=\sqrt{53}$

10. ash2326

now in graph is space is equivalent to1 feet so the length of the ramp is $$\sqrt{53}$$ feet

11. ash2326

jessica did you get it??

12. anonymous

yes thank you

13. ash2326

welcome :)

14. anonymous

you are very helpful and i am fustrated cuse i think my math is messed up.because it is an open book and the answers to choose from are not that and what you showed me is in the book teaching, what do i do?

15. ash2326

jessica if you post the full question, I'll be able to understand better and will be able to help you