PLEASE HELP, For some reason I can't figure this out
Two cars left an intersection at the same time, one heading due south and the other heading due east. Later they were exactly 95 miles apart. The car heading east had gone 38 miles less than twice as far as the car heading south.
How far had each car traveled?
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Answer:
This is a problem where pythagoras theorem has to be applied
at any given time the cars are travelling at right angles to each other
north bound has traveled x miles
west bound car traveled 2x-38miles
leg1^2+leg2^2=hypotenuse ^2
x^2+(2x-38)^2=95^2
x^2+4x^2-152x+1444=9025
5x^2-152x-7581=0
Find the roots of the equation by quadratic formula
a= 5 , b= -152 , c= -7581
b^2-4ac= 23104 + 151620
b^2-4ac= 174724 %09sqrt%28%09174724%09%29=%09418%09
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=( 152 + 418 )/ 10
x1= 57.00
x2=( 152 -418 ) / 10
x2= -26.60
Ignore negative value
57 miles north bound car
west bound car = 2*57-38=76 miles
Please mark me brainliest
Step-by-step explanation:
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