In a class total students are 200, 180 appeared in exams 70% qualified. how many students failed in exam.

54

Step-by-step explanation:

First, take the number 200. we can remove 20, because they didn't go to the exams.

Secondly, we have to find 70% of 180. This can be done by doing some math.

Let's do this by using fractions. 70/100 * 180 = 126.

Third, we find the other 30% by doing the same equation.

30/100 * 180 = 54

(This is the part where you thank me, and give your opinions, and maybe "brainliest" answer. :D)

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: