An equilateral triangle has 3 equal sides by definition.
so we know that x+2 = -2x+20 because we're told that those are both lengths of the triangle's sides. let's solve for x.
x+2 = -2x + 20
add 2x to both sides.
3x + 2 = 20
subtract 2 from both sides.
3x = 18
divide both sides by 3.
x = 6
now, let's find the length of the sides. plug 6 into one side, which is x+2.
6+2 = 8. so each side's length must be equal to 8. let's just check to make sure we didn't make a mistake. if this is correct, then -2x + 20 should also = 8.
-2(6) + 20
-12 + 20
8.
so we know that the sides = 8. let's see if 14 - x or 2x+4 are equal to 8 when we plug in 6 for x.
14 - 6 = 8. so 14-x could be a length for a side.
2(6) + 4 = 12 + 4 = 16. so 2x + 4 can not be a length for a side.
the answer is 14 - x only, or C.
Answer:I’m only doing 3 and id k if I’m right either so lol but A is a reflection I think and I don’t think B is congruent which mean some of the size and not like right like they don’t match or something like that and to be nice on number 5 trace the tree up the blue zigzag yea trace it rly hard fold it then rub on the back of the paper the shape should end up on the other side that’s how I cheated try doing that with number 4 too
Step-by-step explanation:I’m sry if that doesn’t make sense I tryed
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
The equation of the line in point slope form is
we're going to analyze two cases
<em>First case</em>
substitute
therefore
y plus 6 equals StartFraction 2 Over 5 EndFraction left-parenthesis x plus 2 right parenthesis
<em>Second case</em>
substitute
therefore
y plus 6 equals StartFraction 5 Over 2 EndFraction left-parenthesis x plus 2 right parenthesis
You will have to divide 353 millimeters by 4:
353 ÷ 4 = 88.25
now we have to multiply 88.25 by 9 (5+4), the total millimeters of only one portion of this drug
88.25 x 9 = 794.25
So he will make 794.25 millimeters of drug (that is if he has the part a too)
(If you should round 88.25 to 88, the answer would be 88 x 9 = 792)
Answer:
No
Step-by-step explanation:
Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side.
