X^2 - 7x + 10 =
(x - 5)(x - 2) <==
Answer:
0.13774 inches ( approx ).
Step-by-step explanation:
Given,
The age of earth = 4.6 billion years = 4600000000 years,
The represented age of earth = 63,360 inches,
That is, scale factor in representation of age
Now, the age of human civilization = 10000 years,
Thus, the represented age of human civilization = actual age × scale factor
Answer:
-51
Step-by-step explanation:
-17+2 is -15
2*4 is 8
8-2 is 6
6^2 is 36
-15--36 is 21
Answer:
Step-by-step explanation:
The shaded area is the difference of areas of the rectangle and the square.
<u>Rectangle:</u>
- A₁ = (x + 10)(2x + 5) = 2x² + 5x + 20x + 50 = 2x² + 25x + 50
<u>Square:</u>
- A₂ = (x + 1)² = x² + 2x + 1
<u>Shaded region:</u>
- A₁ - A₂ =
- 2x² + 25x + 50 - (x² + 2x + 1) =
- 2x² + 25x + 50 - x² - 2x - 1 =
- x² + 23x + 49
Percentage drop form 2007 to 2009 is 12%
Percentage drop form 2009 to 2010 is 15%