2x+4 is the length of one side
Answer:
65.36
Step-by-step explanation:
15.2 x 4.3 = 65.36
Answer:
x = 3 or -3
Step-by-step explanation:
So you have the equation x² - 9 = 0
Move the 9 to the other side: x² = 9
Then take the square root of both sides: 
= ±
x = ± = ±3
x = 3 or -3
Answer:
<u>7 groups of 8 = 6 groups of 8 plus 1 group of 8</u>
Step-by-step explanation:
1. Let's review the information given to answer the question correctly:
7 groups of 8 = 6 groups of 8 plus ?
2. Let's answer the question, this way:
How much are 7 groups of 8? 56 = 7 * 8
How much are 6 groups of 8? 48 = 6 * 8
What is the difference between 7 groups of 8 and 6 groups of 8?
(7 - 6 ) * 8 = 1 * 8
Therefore,
<u>7 groups of 8 = 6 groups of 8 plus 1 group of 8</u>
