Ift varies as v, and t = 24 when v=t, find v when t = 21.

V = 21

Step-by-step explanation:

from the question , which says  if T varies as V and T  = 25  and V=T. find V when t = 21.

solution.

T∝ v

 T = KV where K is the constant of proportionality

make K the subject of the formulae

then

K = T/V

Note, T = V  from the question and T was given to be 24

therefore;

K = 24/24

K = 1

so, find V  when T = 21

from  K = T/V

k = 21 /v

1 = 21/ v

we cross multiply inorther to get the value for v

1 × v = 1 × 21

V = 21 solved

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step-by-step explanation:

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: