When two angles add to 90°, we say they "<u>Complement</u>" each other.
So if two angles are complementary,
then the sum of their measures is 90 degrees.
For example, if we had a 62 degree angle and an 18 degree angle,
these two angles are complementary because they add to 90 degrees.
The sum of first 8 terms of series is -130208
<em><u>Solution:</u></em>
Given that,
2 - 10 + 50 - 250 , ....
n = 8
Find the common ratio between a term and its previous term

Thus common ratio is same
This is a geometric series
<em><u>The sum of terms of geometric sequence is given as:</u></em>

Where,
r is the common ratio
n is the nth term
is the first term of series
From series,

Therefore,

Thus sum of first 8 terms of series is -130208
Answer: The correct option is c
Step-by-step explanation:
From the graph shown in the given figure, we need to find the equation of the line. We will use the slope intercept equation to get the equation if the line.
Formula for slope intercept equation is
y = mx + c
where m is the slope and c is the intercept.
Slope, m = (change in value of y) / (change in value of x)
Slope = (y2 -y1) / (x2 -x2)
From the graph,
y2 = 0, y1 = 2
x2 = 2, x1 = 0
Slope, m= (0-2) / (2-0) = -2/2 = -1
Intercept from the graph is the point at which the line cuts the y axis an it is 2
So the equation is
y = -x + 2
From the graph,
The upper region was shaded( which means the lower region satisfies the equation) and the line of the equation is broken. So the equation is y lesser than -x + 2
The correct option is c
15, first, you divide 6 by 4 and that will give you how many words Ravi can type per second, then multiply by 10.