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
telo118 [61]
3 years ago
9

20-%204%29%20" id="TexFormula1" title="( {x}^{3} - 8 {x}^{2} + 19x - 9) \div (x - 4) " alt="( {x}^{3} - 8 {x}^{2} + 19x - 9) \div (x - 4) " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Anna [14]3 years ago
6 0

(x^3-8x^2+19x-9)\div(x-4)=x^2-4x+3\\\underline{-x^3+4x^2}\\=-4x^2+19x\\\underline{\ \ \ \ \ 4x^2-16x}\\.\ \ \ =3x-9\\\underline{\ \ \ \ \ -3x+12}\\.\ \ \ \ \ =\ 3

x^3-8x^2+19x-9=(x^2-4x+3)(x-4)+3



You might be interested in
Please help me answer #4, #5 and #6
Salsk061 [2.6K]

Answer:

4). The Washington Monument is 169.2-m tall.

Step-by-step explanation:

4). We know this because...

person     1.8       0.7

----------  = -----  = -------

Wash.        x       65.8

We then know to cross-multiply to get:  

1.8(65.8) = 0.7x

Which simplifies down to:

118.44 = 0.7x

x = 169.2

Answer:

5). The pond is 180ft wide.

Step-by-step explanation:

5). We know this because...

90       120

-----  = -------

135        x

We then know to cross-multiply to get:

90x = 120(135)

Which simplifies down to:

90x = 16200

x = 180

Answer:

6). The height of the clock tower is 13ft 9in.

Step-by-step explanation:

6). We know this because...

person       5.5         4

----------  =  --------  = -----

clock            x          10

We then know to cross-multiply to get:

5.5(10) = 4x

Which simplifies down to:

55 = 4x

x = 13.75 (13 ft 9 in)

7 0
3 years ago
Let f (x) = 2x - 1, g(x) = 3x, and h(x) = x2 + 1. Compute the following: h (h(x)) and. g (h (x))
ki77a [65]
H(h(x)) means to use the entire function h(x) as the x value in the function h(x)..

h(h(x)) = (x²+1)² + 1
= (x²+1)(x²+1) + 1
= (x^4 + x² + x² + 1) + 1 
= x^4 + 2x² + 2

g(h(x)) means to use the entire function h(x) as the x value in the function g(x)..

g(h(x)) = 3(x² + 1)
= 3x² + 3
g(h(x))
7 0
3 years ago
One number is 3/8 of another number. The difference of the two numbers is 4.2. What is the lesser number
boyakko [2]

Answer:

2.52.

Step-by-step explanation:

If one number is x then the other = 3x/8.

Also x - 3x / 8 = 4.2

x - 0.375 x = 4.2

0.625x = 4.2

x = 4.2 / 0.625

x = 6.72.

So the lesser number is 6.72 * 0.375 = 2.52.

4 0
3 years ago
If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is true?
Marysya12 [62]
I have a feeling, these were the answer choices you were trying to make: <span>A ∪ B = {7}
B ⊆ B
B ⊂ A      Also, the second answer is the only one that's true


</span>
8 0
3 years ago
What graph matches y=-3x-2
Naya [18.7K]

Answer:

There is no picture dude

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Lris has a family photograph with a width of8 in and a height of10 in. she wants to enlarge the photograph so that its width is
    15·1 answer
  • How do i solve y=4-1/(3+x)
    7·1 answer
  • N/3 +2&gt;0 help please !
    14·1 answer
  • Connie says that main st appears to be parallel to elm st is connie correct
    6·1 answer
  • What is the justification for -3x+7=7x-3
    7·1 answer
  • MNM Corporation gives each of its 500 employees an aptitude test. The scores on the test are normally distributed with a mean of
    7·1 answer
  • The sum of 4 and 2 raised to the third power
    9·2 answers
  • Which relation is displayed in this table?
    10·1 answer
  • Write this essay for me
    12·2 answers
  • A system of equations is shown. y = 2x - 7 y = -x + 5 What is the solution to the system of equations? Please Show your work
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!