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
daser333 [38]
3 years ago
6

Find the factors from the roots, then multiply the factors together. y=x3−3.5x2+3.5x−1

Mathematics
1 answer:
neonofarm [45]3 years ago
8 0

Answer:

hello :

y=x3−3.5x²+3.5x−1

y = (x3 - 1 ) - 3.5 ( x² - 1)

y= (x -1 ) ( x² + x + 1 ) + 3.5 ( x - 1 ) (x + 1)

y = ( x - 1 ) ( x² + x + 1 + 3.5x -3.5)

y = (x - 1 ) ( x² + 4.5x  - 2.5)

the dicriminent of  x² + 4.5x  - 2.5  is : Δ = (4.5)²- 4(1)(- 2.5) = 30.25 = (5.5)²

x1 = ( - 4.5  -  5.5)/2         x2 =  ( - 4.5  + 5.5)/2

x1 = - 5    x2 = 1/2 = 0.5

y = (x - 1 )( x +5) (x - 0.5)

You might be interested in
Jerome works as a waiter. He earns $80 each weekend plus 15% in tips based on the cost of the meals served.
Softa [21]

Answer:

He gets paid $80 each weekend, and a 15% with tips.

you would need to figure out the tips, by taking the $725 and timesing it by .15 for the percent.

which would be 108.75

you would now take 108.75 and add 80 to get what he made that weekend.

108.75+80 = 188.75 dollars

Step-by-step explanation:

5 0
3 years ago
Which function is most likely graphed on the coordinate plane below?<br> y у
Sindrei [870]

Answer:b

Step-by-step explanation:

i took it

7 0
2 years ago
What is the product of (x 1)^2?
Viktor [21]
The product of (x1)^2 is 20
6 0
3 years ago
How many pairs can be made from 8 different objects?
NeTakaya
The correct answer is 31. I did it incorrectly the first time, but the answer is 31. :-) Thanks Olivia!
3 0
3 years ago
Approximate the change in the volume of a sphere when its radius changes from r= 5ft to r= 5.1ft (v(r)= 3/4 pi r^3)?
leva [86]

Answer:

18.03 cubic feet

Step-by-step explanation:

Hello,

Step 1

find the volume of the sphere when radius= 5 ft

v(r)= \frac{3}{4} \pi r^3\\v(5)= \frac{3}{4}\pi (5\ ft)^3\\v(5)= \frac{3}{4}\pi *125\ ft^{3} \\v(5)=294.52\ cubic\ feet\\

Step 2

find the volume of the sphere when radius= 5.1 ft

v(r)= \frac{3}{4}\pi r^3\\v(5.1)= \frac{3}{4} \pi (5.1\ ft)^3\\v(5.1)= \frac{3}{4}\pi *132.651\ ft^{3} \\v(5.1)=312.551\ cubic\ feet\\\\

Step 3

Compare the Volumes to find the change

\frac{v(r_{2})}{v(r_{1})} =\frac{312.551}{294.52} =1.06

the volumen of the sphere with radius = 5.1 is 1.06 times bigger than the first one(r=5)

Now, find the change

change= {v(r_{2})-{v(r_{1})}} \\change=312.551\ cubic\ feet\ -294.52 cubic feet \\ change=18.031\ cubic\ feet

change=18.03 cubic feet

Have a great day.

4 0
3 years ago
Other questions:
  • Find the x-intercept for the line represented by this equation.
    9·1 answer
  • name the lengths of the sides of three rectangles with perimeters of 14 units. use only whole numbers.
    9·1 answer
  • Laura  earns $ 255 by working 20 hours each week .
    9·1 answer
  • If a=4 and b=5, what is the value of the following expression? 3 (a+3b)-4
    15·2 answers
  • Find the exponential function that satisfies the given conditions: Initial value = 35, increasing at a rate of 10% per year
    10·1 answer
  • The answer please and thank you
    11·1 answer
  • A woman making $32,000
    7·1 answer
  • 5x + 6y when x = 16, y = -9
    15·1 answer
  • What is⅖ + ⅔ in simplest form?
    9·1 answer
  • ......................help
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!