Answer:
1222 billion dollars.
Step-by-step explanation:
To find the total increase from 1960 to 2010, we need to find the growth of each decade and sum them all:
In the period 1960-1970, we have x = 1, and the growth is:

In the period 1970-1980, we have x = 2, and the growth is:

The growth in the following 3 periods are:



So the total growth in the period 1960 - 2010 is:



Rounding to the nearest billion dollars, we have a total of 1222 billion dollars.
Answer:
x = 42.5
Step-by-step explanation:
It is said:
If two angles are not corresponding, then they make up 180°. They are more known as supplementary angles.
So the equation is:
a + b = 180°
Substitute
x + 8 + 3 x + 2 = 180°
x + 3x + 8 + 2 = 180°
4x + 10° = 180°
4x = 180° - 10°
4x = 170°
x = 170° ÷ 4
x = 42.5
Answer:
x^2 - 2xi - 4x +8i
Step-by-step explanation:
(x -4) (x -2i) (x+2i)
Answer:
Step-by-step explanation:
4:12= 1:3