1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vadim26 [7]
3 years ago
12

Let f(x)= 5x-9 and g(x)=x+4 find f(g(x) and g (f(x)

Mathematics
1 answer:
shtirl [24]3 years ago
8 0
F(g(x)= x+4
f(x+4)= 5(x+4)-9
=5x+20-9
=5x+11
g(f(x)= 5x-9
g(5x-9)=5x-9+4
=5x-5
You might be interested in
In April, The Kazbaas drove 760 miles in their tour van.
DedPeter [7]

9514 1404 393

Answer:

  £135.98

Step-by-step explanation:

  (760\text{ mi})\dfrac{1\text{ gal}}{29.5\text{ mi}}\cdot\dfrac{4.55\text{ L}}{1\text{ gal}}\cdot\dfrac{\pounds1.16}{1\text{ L}}=\dfrac{760\cdot4.55\cdot\pounds1.16}{29.5}\\\\=\boxed{\pounds135.98}

It cost £135.98 for petrol in April.

5 0
2 years ago
What is 784 in expanded form, using exponents?
Oduvanchick [21]
700 + 80 + 2^2?

I have no idea rly lol
4 0
3 years ago
Read 2 more answers
What is 4 x + 3 y equals 2 + 3 x - 2 y equals 10 on a graph
Nezavi [6.7K]
10x = 27

<span>x = 27/10

those are the answers </span>
8 0
2 years ago
An unconfined compression test was performed to determine the average strength of concrete cylinders (in psi). It is believed th
Ronch [10]

Answer:

Explained below.

Step-by-step explanation:

(1)

The confidence level is, 91%.

Compute the value of α as follows:

\text{Confidence level}\% =(100-\alpha \%)\\\\91% = 100-\alpha \%\\\\\alpha \%=100-91\%\\\\\alpha \%=9\%\\\\\alpha =0.09

(2)

As the population standard deviation is provided, i.e. <em>σ</em> = 256 psi, the <em>z</em> value would be appropriate.

The <em>z</em> value for α = 0.09 is,

<em>z</em> = 1.69

(3)

Compute the 91% confidence interval as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

     =3000\pm 1.69\cdot\frac{256}{\sqrt{70}}\\\\=3000\pm 51.71\\\\=(2942.29, 3057.71)

(4)

The 91% confidence interval for population mean implies that there is a 0.91 probability that the true value of the mean is included in the interval, (2942.29, 3057.71) psi.

8 0
2 years ago
About 60% of people in North America know how to swim. Use that statistic to answer the questions below.
kenny6666 [7]

Answer:

(Picture)

Step-by-step explanation:

To find 60% of people you just multiply .6 with the number you are trying to find 60% of. Like 100. 100 times .6 = 60.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Jan has recipe for bread.she uses2/3 cups of flour and 1/3cup of chopped onion.which ingredient does she use more of flour or on
    11·2 answers
  • Write an equation for the description.<br> Ten times the sum of half a number x and 5 is 8.
    7·1 answer
  • Is 1/2 a rational number
    15·2 answers
  • Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4% of the total inter
    7·1 answer
  • The diameter of a circle had endpoints at (-2, 3) and (6, 3). What is the equation of the circle
    5·1 answer
  • Combine the rational expressions into a single fraction and reduce it in the lowest terms.
    12·1 answer
  • PLEASE HELP ): 3
    7·1 answer
  • Football team had scores of 23, 15, 11, 29, and 17 in the last five games the team played. Which score is NOT a prime number?
    5·2 answers
  •   In a survey of 2,200 people who owned a certain type of​ car, 440 said they would buy that type of car again. What percent of
    13·1 answer
  • john walks digs to earn extra money. he earns $5 per dog he walks using yhe following equation y = 5x , where x = the number of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!