The answer for f.f (x) = 25 / 4x² and g.g(x)= 4x² -28x +49.
<h3>What is a Function ?</h3>
A function is a mathematical statement used to relate a dependent and an independent variable.
It is given that
f(x) = 5/2x
g(x) = 2x - 7
It is asked to found
f.f
g.g
f.f (x) = (5/2x) * (5/2x)
= 25 / 4x²
g.g(x)= ( 2x - 7)( 2x - 7)
= 4x² -28x +49
Both the answers are in its simplified form
Therefore the answer for f.f (x) = 25 / 4x² and g.g(x)= 4x² -28x +49.
To know more about Function
brainly.com/question/12431044
#SPJ1
Maya is cleaning out her closet and is shocked when she realizes that she has 55 shirts. She decides to donate 40% of them. How many more shirts does she have for her ?
Answer:
The number of T-shirt that Maya will have after donating 40% is 22 shirts
Explanation:
Given:( as per the above data provided)
Total number of T-shirts = 55
Percentage of T-shirts she wish to donate = 40%
To find:
Remaining number of T-shirt left after donating?
Formula to be used:
Remaining T shirt = (Total number of T-shirt /100) X The Percentage of T-shirt she wish to donate
Steps:
Substituting all the above provided values in the formula we get,
= (55/100)*40
= 22 shirts.
Thus the number of T-shirts left with her is 22.
Answer:
To find probability, divide the number of times an event happens by the number of trials.
Step-by-step explanation:
The formula to find the final velocity, v of an object having an initial velocity , u , and acceleration , a , at time t is v=u+at
(a) v=u+at
Subtract u from both sides,
v-u=u+at-u
v-u=at
Dividing both sides by t.
(b) The relationship between the acceleration and time for a given initial and final velocity is given by "
Where
s is the distance covered
t is the time
Hence, this is the required solution.
<h3>Answer:</h3>
242 weeks
<h3>Explanation:</h3>
After n weeks at annual interest rate r, the principal amount P will result in account balance A according to ...
... A = P·(1 +r/52)^n
Taking logs, we get
... log(A) = log(P) +n·log(1 +r/52)
... (log(A) -log(P))/log(1 +r/52) = n . . . . . solve for n
Filling in the given informatin, we have ...
... (log(6700) -log(5000))/log(1 +.063/52) = n ≈ 241.71
Rounded to the next higher number of weeks, this is 242 weeks.