Answer: {5 ± 2√10, 5 - 2√10}
Step-by-step explanation: First isolate the binomial squared by adding 40 to both sides to get (x - 5)² = 40.
Next, square root both sides to get x - 5 = ± √40.
Notice that root of 40 can be broken down to 2√10.
So we have x - 5 = ± 2√10.
To get <em>x</em> by itself, add 5 to both sides to get x = 5 ± 2√10.
So our answer is just {5 ± 2√10, 5 - 2√10}.
As a matter of form, the number will always come before the
radical term in your answer to these types of problems.
In other words, we use 5 ± 2√10 instead of ± 2√10 + 5.
Answer:
A.
Step-by-step explanation:
13 units.
Since both are negative, and they’re just asking for distance between, you can just subtract 12 from 25 to get 13.
Answer:
The Missing Length = 7
Step-by-step explanation:
Equation: side length x side length = area
- This means that if you divide the area by one of the side lengths, you'll find the other
1. Convert the numbers into decimals
- 8 3/4 - 8.75 (area)
- 1 1/4 = 1.25 (side length)
2. Divide the <u>area</u> by the <u>side length</u>
<u></u>
<u>7</u> is the answer.
ADD = 300
ITI = 323
ON - 33 (Almost a 6 at the end!)