Answer:
3cm
Step-by-step explanation:
It because every triangle has three edges so that is why it 3cm
Answer:
D
Step-by-step explanation:
I like count by hand. If all else fails (like not being able to enter -12 into your calculator), counting by hand is a time honored method of getting answers.
That is never the answer in a math class. You should answer dividing -12 by 2
Answer:
10 and 7
Step-by-step explanation:
Let the numbers be A and B
The sum of the two numbers is 17.
That’s
A + B = 17
The difference of the numbers is 3
A - B = 3
We now have two equations
1. A + B = 17
2 . A - B = 3
Subtract equation two from equation one.
B - - B = B + B = 2B
2B = 14
Divide both sides by 2
2B/2 = 14/2
B = 7
Now substitute 7 for B into either of the equations to get A.
Using equation 1 we have
A + B = 17
A + 7 = 17
Subtract 7 from both sides
A - 7 = 17 - 7
A = 10
The numbers are 10 and 7
Answer:
Step-by-step explanation:
P=2(w)+2(l)
34=2(6.5)+2(l)
34=13+2(l)
21=2(l)
10.5=l