he usual definition is that every face must have the same number of edges, and the same number of faces must meet at every vertex. The key to most proofs of this classification is the Euler characteristic.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the absolute value of lk-8l=8<br><br> PLS ANSWER BEFORE 6:00 TODAY TY

Bingel [31]

It's 7:58 here.

|k-8|=8

k-8 = 8 or -(k-8)=8

k=16 or -k+8=8

k=16 or k=0

check:

|0-8|=|-8|=8 good

|16-8|=|8|=8 good

Answer: k=16 or k=0

5 0

3 years ago

Need help with this question ASAP!<br> 20 points!

Delvig [45]

Answer:

6√3

Step-by-step explanation:

Use the sin formula, which is sin = opp / hyp

sin 60 = x / 12

x = 12 sin 60

x = 6√3

4 0

3 years ago

2(a+7) - 7 = 9 what is the answer

REY [17]

Answer:

The answer is 1

Step-by-step explanation:

2(a+7)−7=9

Step 1: Simplify both sides of the equation.

2(a+7)−7=9

(2)(a)+(2)(7)+−7=9(Distribute)

2a+14+−7=9

(2a)+(14+−7)=9(Combine Like Terms)

2a+7=9

Step 2: Subtract 7 from both sides.

2a+7−7=9−7

2a=2

Step 3: Divide both sides by 2.

a=1

7 0

3 years ago