Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.
Dividing both sides by x for the given values, k becomes 18/4 = 4.5
Answer:
C. y=36(1.2)t
Step-by-step explanation:
The number of members in the Club in t years after 2001 is given by an equation in the following format:

In which y(0) is the number of members in 2001 and r is the growth rate, as a decimal.
The number of members in the Triathlon Club was 36 in 2001 and has increased by 20% each year.
This means that 
So



The correct answer is C.
The factors for given equation f(x)=
.
- (x-1) - No
- (x-3) - No
- (x+3) - Yes
- (x-5) - Yes
- (x+5) - Yes
<u>Step-by-step explanation:</u>
The given equation is f(x)=
.
Add 0 at the end of the equation.
= 0.
Let us group the given equation,
=0.
⇒ Group 1:
.
Group 2:
.
Pull out factor from each group,
⇒ Group 1:
.
Group 2: (x+3) (-25).
Join the two group since both (x+3) is common in both groups.
=0.
One of the factor is (x+3).
Other factors are solved by the formula,
.
= (x+5) (x-5) .
The other factors are (x+5) and (x-5).
Answer:
6
Step-by-step explanation:
By the diagram you can see that the upper quartile is 6. Also this answer was calculated and checked!
Answer:
18.16
Step-by-step explanation: