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
Lana71 [14]
3 years ago
9

Find g(f(x)) when f(x) = 3x2 + x - 8, and g(x) = 4x + 5.

Mathematics
1 answer:
scoray [572]3 years ago
4 0

Answer: 12x^3 + 19x^2 -27x -40

Step-by-step explanation:

Finding f(x) times g(x) is multiply the two polynomials

(4x+5)(3x^2 + 1x -8)    Apply the distributive property twice to solve

4x ( 3x^2 + 1x -8)  

12x^3 + 4x^2 - 32x  

5(3x^2 + 1x -8)  

15x^2 + 5x - 40  

12x^3 + 4x^2 - 32x + 15x^2 + 5x -40   now combine like terms

12x^3 + 19x^2 -27x -40

You might be interested in
Math Help? 15 Points
devlian [24]
Umm. Is this high school?.
4 friends x 2 ballons = 8 friends only ballons. 
8 + 1 = 9.
9 total
4 0
3 years ago
In the united states a person ears more than 40,000 pounds of bread in a lifetime if he or she lives to be 80 years old.Does thi
gogolik [260]

Answer:

A reality check quickly reveals that even if "eats" were spelled properly, the statement would still be nonsense.

Step-by-step explanation:

(40,000 pounds / 80 years) = (4,000 pounds / 8 years) = 500 pounds per year

500 pounds of bread per year = an average of a little more than 1-1/3 pound of bread per day, every day of a person's life.  My reality meter says that this is a bit much, especially in the USA.

3 0
3 years ago
O) x² – 18x - 19 + 20y - y2,​
pshichka [43]

Answer:

19x-19+23y

Step-by-step explanation:

add the like terms

7 0
3 years ago
The perimeter of the rectangle below is 74 units. Find the length of side xy.
marusya05 [52]
Bsnndnsndndnndndndndndndndn
4 0
3 years ago
-21(+5-8)7+-90:-6= yesssssssssssssssssssssssssssssssssssssssssssssssssss
hodyreva [135]

Answer:

yeeeeeeeees

Step-by-step explanation:

yeeeeeeeeeeees

8 0
3 years ago
Other questions:
  • Seth made 4 quarts of fruit punch for a birthday party. How many cups of fruit punch did he make?
    6·2 answers
  • Expand and simplify (2x + 5)^2
    5·2 answers
  • 2. A sweater costs $35. Find the total cost of the<br> sweater if the sales tax is 5%.
    11·2 answers
  • 2x+-3y · 6e<br> My friend needs to know it, it would be nice if you can answer it for him
    7·2 answers
  • I have to answer this but I dont know how can you help me <br><br>5x-2= -7<br><br>what is x??
    7·2 answers
  • Typically, joseph buys a single tire at a time for his truck. however, he sees an advertisement for a buy 3, get 1 free offer fr
    10·2 answers
  • What’s the answer?(SOMEONE PLEASE HELP ME)
    9·1 answer
  • An employee at plant a receives a salary of $350 per week and a 2.9% bonus on the production sales for the week.if the sales for
    8·1 answer
  • The sum of three consecutive odd number is one hundred fifty-nine. what is the smallest of the three numbers?
    7·1 answer
  • In Mrs. Barrios’ 7th period, there are 9 girls and 12 boys. What ratios are equivalent to 9:12? Select all that apply
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!