Answer:
Step-by-step explanation:
The formula of an area of a rectangle:
l - length
w - width
We have
Substitute:
<em>divide both sides by 15</em>
The formula of a perimeter of a rectangle:
Substitute:
96 and 2 cause they are WAY off.
Answer:a and b
Step-by-step explanation:an acute angle in small, an acute angle will always be smaller then C
Answer:
a=(c+2b)/5
Step-by-step explanation:
Like terms in one side to subject a.
When exchanging sides make sure u do inverse operations. Therefore;
9a - 4a = c + 2b
5a = c + 2b
a = (c+2b)/5
<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>
