A square has 4 right angles
Answer:

Step-by-step explanation:
Start with the distance formula:

Identify your values.

Substitute.

The
becomes positive as it's being multiplied by a negative.

Solve what is in parentheses.

Square what is in parentheses.

Add.

Find the square root (I usually do four digits after the decimal).

Round to the nearest hundredth.

Answer:
About the distance across the United States or 3800 km (23612 miles)
Step-by-step explanation:



x=3.8.
9e + 4 = 14 + 8e
9e = 10 + 8e (Subtract 4 from both sides)
e = 10 (Subtract 8e from both sides)
Answer:
3 : 4 = 12 : 6
2 : 5 = 30 : 75
7 : 9 = 14 : 18
8 : 3 = 64 : 24
Step-by-step explanation:
3 : 4 = 12 : ?
3/4 = 12/?
3 x ? = 12 x 4
3 x ? = 48
? = 48 ÷ 3 = 16
2 : 5 = 30 : ?
2/5 = 30/?
2 x ? = 30 x 5
2 x ? = 150
? = 150 ÷ 2
? = 75
7 : 9 = ? : 18
7/9 = ?/18
7 x 18 = ? x 9
126 = ? x 9
? = 126 ÷ 9
? = 14
8 : 3 = 64 : ?
8/3 = 64/?
8 x ? = 64 x 3
8 x ? = 192
? = 192 ÷ 8
? = 24