Step-by-step explanation:
Use the compound interest formula:
A = P( 1 + r/n)^nt
A is the amount at the end
P is the principal or original amount.
R is annual rate as a decimal (you have to convert)
N is the # of compounding periods in a year (quarterly means 4)
T is time in years
A = 500( 1 + 0.0475/4)^(4×20)
This would be $1285.64 when fully computed.
So, we are given the y intercept, and since we know c is the same as the y value of the y intercept, we know that c=15.
From there we can pick any two of the points given to us to find our a and b.
Let's use (4,17) and (8,23) becase they are whole numbers.

So, with b=0, we can plug it back into the first equation to get:
So our quadratic is 
<em>Answer:264 students</em>
Step-by-step explanation:You have to add to get you answer.I'll show you how I got 264:
12+12=24
24+36=60
60+36=96
96+21=117
117+21=138
138+63=201
201+63=264
Your answer is: 264 students
Answer:
-2
Step-by-step explanation:
2(x-4)+3x-x² for x = 3
is : 2(3-4) +3(3)-3² = -2 ... answer : B
Answer:
12 - 4
3 - 1
18 - 6
Step-by-step explanation:
This is simply a matter of pluggin in the method, so let's do it shall we?
It wants you to put the a third of each number, so you'll divide each number by three to get what the third is!
VISUAL REPRESENTATION:
12÷3 = 4
3÷3 = 1
18÷3 = 6