All categories

3 years ago

PLEASE HELP ME Use the function below to find f(2). f(x) = 1/3 x 4^x

Mathematics

2 answers:

ANEK [815]3 years ago

7 0

Answer:

16/3

Step-by-step explanation:

I got it right

Anna71 [15]3 years ago

4 0

f(2) This means that x is 2, so you plug in 2 for x in the equation

$f(x)=\frac{1}{3} (4^x)$

$f(2)=\frac{1}{3}(4^2)$

$f(2)=\frac{1}{3} (16)$

$f(2)=\frac{16}{3}$

Your answer is D

You might be interested in

3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtrcted by 6

hichkok12 [17]

Answer:

x = -0.5

Step-by-step explanation:

Here we have the sentence:

"3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtracted by 6"

The first part:

"3 to the power 2x+3 is subtracted by 9..."

This can be written as:

$3^{2x + 3} - 9$

"... is equal to 2 times 9 to the power x+1 and is subtracted by 6"

$3^{2x + 3} - 9 = 2*9^{x + 1} - 6$

Let's solve this for x.

First, we can add 9 in both sides:

$3^{2x + 3} = 2*9^{x + 1} - 6 + 9 = 2*9^{x + 1} + 3$

We also know the relations:

$a^n*a^b = a^{n + b}$

and

$(a^n)^m = a^{n*m}$

We can write the left part as:

$3^{2x + 3} = 3^{2x}*3^3 = (3^2)^x*3^3 = 9^x*27$

And the right side as:

$2*9^{x + 1} + 3 = 2*9^x*9 + 3 = 18*9^x + 3$

Then the equation becomes:

$27*9^x = 18*9^x + 3$

Now let's move both terms with 9^x to the left side:

$27*9^x - 18*9^x = 3\\$

$(27 - 18)*9^x = 3$

$9*9^x = 3$

$9^x = 3/9 = 1/3$

Now remember that:

Ln(a^b) = b*Ln(a)

Then if we apply the Ln( ) function to both sides, we get:

$Ln(9^x) = Ln(1/3)$

$x*Ln(9) = Ln(1/3)$

$x = \frac{Ln(1/3)}{Ln(9)} = -0.5$

5 0

3 years ago

I WILL GIVE BRAINLIEST TO THE FIRST PERSON!A spinner has 8 equal-sized sections. The probability that the spinner will stop abov

FromTheMoon [43]

The chances of it spinning on blue is likely

3 0

3 years ago

Read 2 more answers

A sporting goods store specializes in mountain bikes. Each week, two dozen mountain bikes are randomly selected from the store's

JulijaS [17]

Answer:

Step-by-step explanation:

A population is a set of similar items or events which is of interest for some question or experiment.

4 0

2 years ago

PLSSS HELP ILL GIVE BRAINLIEST!!!,!!!

Alexus [3.1K]

rewrite -1 1/3 as a decimal: -1.5

-2.1 - x = -1.5

Subtract -2.1 From both sides:

X = -1.5 - -2.1 = -1.5 + 2.1

X = 0.6

Answer: B. 0.6

6 0

2 years ago

Read 2 more answers

Which line is the line of reflection? A. a B. b C. c D. d

Leto [7]

The line of reflection is b

You can see it much easier if take away all the clutter. Redraw the diagram and take way a d and especially c.

You should be left with only line b and the two triangles. You can see it much easier if you do that. Then just look at the parallel lines of the triangles. They are right across from each other.

6 0

3 years ago

Read 2 more answers