what that person said.........;
Alright.
For 7, you'll want to put congruent sides equal to each other, assuming they are parallelograms. So, you'll get the two equations:
3x+2=23
2y-7=9
Solve using GEMDAS/PEMDAS, and you'll get these answers.
3x+2=23
3x=21
x=7
2y-7=9
2y=2
y=1
For 8, you'll want to do the exact same thing, formatting the numbers to equal each other. You'll get these two equations:
3y+5=14
2x-5=17
Solving them would make:
3y+5=14
3y=9
y=3
2x-5=17
2x=22
x=11
For 9, you have to remember that the angle opposite of one angle in a defined parallelogram are congruent. Thus:
130=2h
5k=50
solve them and you get
h=65
k=10
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Hope that helped. Good luck.
Answer:
<h2>12 feet 8 inch long cast a shadow</h2>
Step-by-step explanation:
A person 6 feet tall standing 18 feet away a lamppost cast a 9 foot shadow.
than move 4 feet than total distance is 22 feet
According to trigonometry rule make 30 degree angle


or

than

answer
That Equals = -60i. Hope im right :) Good luck