Answer:
NO
Step-by-step explanation:
Triangle A suggests that the triangle is isosceles.
Isosceles:
Triangle with two congruent angles and sides:
7 , 6 , 7
5 , 4 , 5
9, 12 , 9
Triangle B suggests that the triangle is scalene.
Scalene:
Triangle with no congruent angles or sides:
5 , 6 , 7
10 , 15 , 7
12 , 18 , 21
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Find slope
slope betwen 2 points (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
so
first make denoms same
denom is 10
(4/5,1/5) turns to (8/10,2/10)
(1/2,3/2) turns to (5/10,15/10)
slope=(15/10-2/10)/(5/10-8/10)=(13/10)/(-3/10)=13/-3=-13/3
use point slope
use (4/5,1/5)
y-y1=m(x-x1)
a point is (x1,y1) and slope is m
y-1/5=-13/3(x-4/5)
expand
wait, we don't need to do that, the only one with slope -13/3 is D
answer is D
Answer: Congruent Angles
Step-by-step explanation:
The answer is .54
54/100=.54
Answer:
Square=5
Triangle=17
Circle=8
Step-by-step explanation:
s=square, c=circle, t=triangle
What each column tells us:
2t+2c=50
3s+t=32
c+2s+t=35
What each row tells us:
2t+c=42
c+2s=18
t+2s=27
c+s+t=30
Solve for s and t:
We will use 3s+t=32 and t+2s=27 to find s and t.
3s+t=32
t=32-3s
Plug in 32-3s for t and solve for s.
(32-3s)+2s=27
32-s=27
-s=27-32
s=5
Square=5
Plug in 5 for s and solve for t.
t+2(5)=27
t+10=27
t=17
Triangle=17
Use c+s+t=30 to find c:
Plug in 5 for s and 17 for t.
c+5+17=30
c+22=30
c=8
Circle=8
