1. andre went hiking near his house. the first trail he hiked on took him
4.5 miles away from his house. the second trail he hiked took him
2.4 miles closer to his house. the third trail took him 1.7 miles further
away from his house. after andre hiked the three trails, how far from
his house was he?

3.8

Step-by-step explanation:

so if he walked 4.5 miles -2.4 miles for closer to his house + 1.7 miles further

4.5-2.4+1.7=3.8

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step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)