Answer:
option 4. 17
Step-by-step explanation:
<u>sum of angles = exterior angle x n</u>
360° = 21.2° n
n = 360 / 21.2
n = 17
<u>Answer</u>
−1 + i times the square root of 7
<u>Explanation</u>
x² + 2x + 8
I will use the complete square method to find the value of x.
x² + 2x + 8
x² + 2x = -8
x² + 2x + (2/2)² = -8 + (2/2)²
x² + 2x + 1 = -7
(x + 1)² = -7
x + 1 = √(-7)
x = √(-7) - 1
= i√7 - 1
= -1 + i√7
<em>−1 + i times the square root of 7
</em>
Answer:
No, you've already proven it's not irrational by writing it as 6/3. You get 2.
Step-by-step explanation:
An irrational number is any number that cannot be written as a fraction.
Answer:
$7.43
Step-by-step explanation:
First, solve for what each of the 5 friends are paying:
130/5 = 26
Then, solve for what each person is paying with the addition of 2 people:
130/7 = 18.57
Last, subtract to find the answer:
26-18.57 = 7.43
