So let's just say "x" is our variable that represents the total number of students in the class. We know that 5 is 20% of x. We can also understand that 0.20x = 5. So 0.20x divided by 0.20 gives us the remaining variable, x. If we do that, we also need to divided the other side by 0.20, so 5 divided by 0.20 is 25. The answer: There are 25 students in Mrs. Conley's class.
Answer:
D) f(x) = 4(3)^x
Step-by-step explanation:
Plug y in for f(x) and plug in the points so if they are both true in one equation then it is correct.
A)
y = 3(4)^x
36 = 3(4)^2
36 = 3(16)
This is already incorrect
B)
y = 4(3)^-x
36 = 4(3)^-2
36 = 4(1/16)
36 ≠ 1/4
This is incorrect
I'm going to skip C because I believe D is correct:
D)
y = 4(3)^x
36 = 4(3)^2
36 = 4(9)
36 = 36
Now we plug in the other points
y = 4(3)^x
12 = 4(3)^1
12 = 4(3)
12 = 12
7-ab will have to be added hope this helped! Also divided it
Plus means addition and square root means √
3 plus the square root of negative 16: 3 + √-16
Minus means subtraction and square root means √
6 minus the square root of negative 64: 6 - √-64
Its asking you to multiply both quantities.
(3 + √-16) * (6 - √-64)
Best of Luck!
Answer:
Step-by-step explanation:
nth term = 3n+2
a) first term = 3+2 = 5
Second term = 3(2)+2 = 8
Third term = 3(3) +2 = 11
b) tenth term = 3(10)+2 = 32
