SOLUTION: 90. Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new collision detector warn

Question 133545This question is from textbook Elementary and Intermediate Algebra
: 90. Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new collision detector warns the driver that there is a train 50 meters from the car and heading toward the same crossing. How far is the train from the crossing.
FYI This questions is in a section titled: Solving Quadratic Equations by factoring
Thanks This question is from textbook Elementary and Intermediate Algebra

Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
We have a right triangle.
a=30 c=50
a^2+b^2=c^2
30^2+b^2=50^2
900+b^2=2500
b^2=1600
b=40 m from the crossing.
.
Ed
RELATED QUESTIONS
Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by checkley71,rapaljer)

. Avoiding a collision. A car is traveling on a road that is perpendicular to a... (answered by ankor@dixie-net.com)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by rfer)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by nerdybill)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by rapaljer)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by ankor@dixie-net.com)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by subudear)

#1)Avoiding a collision. A car is traveling on a road that is perpendicular to a... (answered by solver91311)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad (answered by mananth)

Avoiding a collision. A car is traveling on a road that is perpendicular to a railroad... (answered by fractalier)