It is D because the segments don’t intersect and are just moving 2 units to the left. They are the same distance apart.
Hope it helps and is correct :)
Answer:
17=3x+2 x=5
Step-by-step explanation:
3x+2=17
3x=17-2
x=15/3
x=5
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Answer:
c) 1.2 mm, 1.6 mm, 2 mm
Step-by-step explanation:
In order to find which sides equal a right triangle, you need to use the Pythagorean Theorem: 
Set up the equation with the first numbers. The two shorter sides (legs) are A and B, and the longest side (hypotenuse) is C.
= 
Since the two sides are not equal, the first option is not a right triangle.
When you follow these steps with the remaining three options, you'll find that the third option (C) makes a right triangle.
Hope this helps, have a nice day!
So, first, what are the two sides?
let's call then x and y
we know that 2(x+y)=12.5 (that's the distance around)
so that means that x+y=6.25 (I just divided both by 2)
now, x=4y (from "4 times as long as it is wide")
so we can substitute:
x+4x=6.25
5x=6.25
x=1.25
so one side, is 1.25 and the other will be 1.25*4=5
and for the area we multiply the two:
1.25*5=6.25 square kilometers, and this is the answer!
Step-by-step explanation:
R = 3x + 9y
When y = 6 and R = 7
7 = 3x + 9.6
7 = 3x + 54
7 - 54 = 3x
-47 = 3x
x = -47/3
