2 years ago

If f(x) = 3 ^ x - 4 what is f(- 2) ?

Mathematics

1 answer:

Karolina [17]2 years ago

8 0

Answer:

-35/9

Step-by-step explanation:

(3^-2)-4

1/9-4

-35/9

You might be interested in

Has a slope of 4 and passes through (-2, 4)

denpristay [2]

Answer:

y = 4x + 12

Step-by-step explanation:

y = mx + b

m = slope = 4

substitute the point (-2, 4) as (x, y)

4 = 4(-2) + b

4 = -8 + b

12 = b

Hope this helps! Pls give brainliest!

8 0

2 years ago

Given the function defined in the table below, find the average rate of change, in simplest form, of the function over the inter

worty [1.4K]

The answer would be 7

7 0

3 years ago

Who wants to help me with my homework? <br><br>anyone please? <br>

kobusy [5.1K]

Answer:

Okay I can help you to do your homework.

5 0

3 years ago

Im just writing stuff because questions have to be atleast 20 characters long so I'm just trying to fill up some space.

DIA [1.3K]

A = 21/2 i will write something too just to fill up the space

3 0

3 years ago

The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher

ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340$

Thus, the correct answer is

Option D) 340

7 0

3 years ago

If f(x) = 3 ^ x - 4 what is f(- 2) ?​

If f(x) = 3 ^ x - 4 what is f(- 2) ?