All categories

3 years ago

Given that f(x) = −x 4 and g(x) = −2x − 3, solve for f(g(x)) when x = 2. −14 −7 7 11

1 answer:

Rudiy273 years ago

7 0

F(x) = -x + 4
g(x) = -2x - 3

f(g(x)) = -(-2x - 3) + 4 = 2x + 3 + 4 = 2x + 7
f(g(2)) = 2(2) + 7 = 4 + 7 = 11

You might be interested in

antiseptic1488 [7]

Answer:

The 95% confidence interval for the mean number of words a third grader can read per minute is (23.8, 24.4).

Step-by-step explanation:

We have to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a p-value of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{3.7}{\sqrt{582}} = 0.3$

The lower end of the interval is the sample mean subtracted by M. So it is 24.1 - 0.3 = 23.8

The upper end of the interval is the sample mean added to M. So it is 24.1 + 0.3 = 24.4.

The 95% confidence interval for the mean number of words a third grader can read per minute is (23.8, 24.4).

5 0

3 years ago

jolli1 [7]

270:360:450 is the ratio

7 0

3 years ago

Masja [62]

Answer: k= -10x+12

Step-by-step explanation:

6 0

3 years ago

Virty [35]

<span> Not 100% sure but I think it is: consumers need to be better informed about what services are available and what those services cost.</span>

8 0

3 years ago

Minchanka [31]

I believe it is C because I think 0 is actually not an integer

7 0

4 years ago