3 years ago

If f(x)=2x+1 and g(x)=x^2, find g(f(3)).

Mathematics

1 answer:

lianna [129]3 years ago

6 0

Answer:

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

You might be interested in

Plz help with algebra! 50 POINTS + BRAINLIEST! random answers will be reported.

statuscvo [17]

4. Number is 3
I don’t got time to do other ones. Sorry

5 0

3 years ago

Read 2 more answers

Explain how you could use a model to find the quotient. 4 divided by 1/3

Wittaler [7]

You can turn :
4 divided by 1/3 INTO 4 times 3
It's the same thing. Then make four groups of 3

7 0

3 years ago

A rectangle is 45 cm on one side and 6 cm on another side. What is the perimeter?

givi [52]

Answer: 102 cm

Step-by-step explanation: you add up all the sides to get 102 cm.

6 0

3 years ago

Read 2 more answers

In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo

larisa86 [58]

Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine $z_{\frac{\alpha}{2}}=z_{0.005}$

Now by using z score table we find that $z_{\frac{\alpha}{2}}=2.58$

The boundaries of the confidence interval are:

$\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64$

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0

4 years ago

A store pays $423 for a crystal vase and marks the price up by 46%. What is the amount of the mark-up?

jek_recluse [69]

Answer:

194.58$

Step-by-step explanation:

Have a great day! :)

6 0

3 years ago

Read 2 more answers