Answer:
ok
Step-by-step explanation:
Triangle A: Right
Triangle B: I think it’s Obtuse
Sorry if it’s wrong
Answer:
B) She is incorrect because when substituting 2 for m the result was a false statement.
Step-by-step explanation:
Let's solve it for ourselves and see if Mia is correct:
7.8+2(0.75m+0.4)=-6.4m+4(0.5m-0.8)
7.8+1.5m+0.8=-6.4m+2m-3.2
1.5m+8.6=-4.4m-3.2
8.6=-5.9m-3.2
11.8=-5.9m
-2=m
m=-2
Since the answer is actually m=-2, Mia's guess is incorrect because plugging in m=2 does not make both sides equal. Therefore B is the correct option.
Answer:
2.5 Miles
Step-by-step explanation:
4 k = ? Mile
1.6 k = 1 mi
4/1.6 is 2.5
1x2.5 equals 2.5
so 4 km should be 2.5 mi
4 k = 2.5 Mile
(x2.5)1.6 k = (x2.5)1 mi
Hi there
-(-2a+13)+(-9-2)-(-7a-3)
-(-2a+13)-9a-2-(-7a-3)
Distribute the negative sign
-(-2a+13)-9a-2+-1(-7a-3)
-(-2a+13)+-9a+-2+-1(-7a)+(-1)(-3)
-(-2a+13)+-9a+-2+7a+3
Distribute
2a+-13+-9a+-2+7a+3
Combine like terms
2a+-13+-9a+-2+7a+3
(2a+-9a+7a)+(-13+-2+3)
=-12
Any questions ?
I hope that's help !