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
Sam lives 8 miles from work and Mike lives 30 miles from work how much farther is my stretchy work then Sam’s
Blizzard [7]

Answer:

22 miles

Step-by-step explanation:

if i am reading this question correctly you are asking how much farther mike lives from sam.

30-8=22

this is pretty easy, just simple subtraction.

3 0
3 years ago
A salesperson receives a 2.5% commission on sales. What commission does the salesperson receive for $8000 in sales?
Nataly_w [17]

Answer:

Step-by-step explanation:

Commission  =2.5% of 8000

=\frac{2.5}{100}*8000\\\\=2.5*80

= $ 200

4 0
4 years ago
All the Factors of x cubed minus 6x squared plus 11 minus 6
lutik1710 [3]

Answer:

Step-by-step explanation:

f(x) = x^3 - 6x^2 + 11x - 6

By the Rational Roots theorem, the roots will be among ±1,2,3,6

So try the low-hanging fruit first. It is clear that f(1) = 0. So, factoring that out, you have

f(x) = (x-1)(x^2-5x+6)

Now factor the quadratic in the usual way.

8 0
3 years ago
For what value of a does the equation 3(2x-a)=2(3x+12) have infinitely many solutions to x
shtirl [24]

Answer: a = -8

3(2x - a) = 2(3x + 12)

⇔ 6x - 3a = 6x + 24

⇔ - 3a = 24

⇔ a = -8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
6) use the steps to solve this system of equations. Show your work.<br><br> Y=x+2 Y=x^2-4
zepelin [54]

y= x + 2 and  y = x^2 - 4

Substitute mx + b for y

x^2 - 4 = x + 2

Solve for x

x^2 - 4 = x + 2

x^2 - x - 6 = 0

(x - 3)(x + 2) = 0

x - 3 = 0; x = 3

x + 2 = 0; x = -2

Substitute the first x value  into the linear equation and solve for y

y = 3 + 2

y = 5

One solution is (3, 5)

Substitute the second x value into the  linear equation and solve for y

y = -2 + 2

y = 0

Another solution is (-2 , 0)

7 0
3 years ago
Other questions:
  • To prove triangleABC is isosceles, which of the following statements can be used in the proof?
    13·1 answer
  • 67/63 as a mixed number
    9·1 answer
  • Event A: Spinner #1 lands on red.
    6·1 answer
  • If your paper has 128 rectangles, how many folds did you make?
    8·1 answer
  • Can I get all the right answers only
    6·2 answers
  • A hurricane was detected in the Atlantic around 5 a.m. The National Weather Service determined that it will make landfall at a l
    9·2 answers
  • Using the two statements, write the equation in one variable.
    15·1 answer
  • A formula for finding SA, the surface area of a rectangular prism, is
    13·2 answers
  • Question 8 plz will give brainlest
    11·1 answer
  • Last year, there were b pies baked for the bake sale. This year, there were 235 pies baked. Using b, write an expression for
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!