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
viva [34]
3 years ago
14

HELLPP. ITS URGENT.50 PTS

Mathematics
2 answers:
Burka [1]3 years ago
5 0

Answer:

I replaced alpha by A and bitta by B. Sorry for this mistake

Download docx
ICE Princess25 [194]3 years ago
3 0

Answer:

  • 4x² - 13x + 8 = 0
  • 4x² - 11x + 5 = 0
  • 16x² - 41x + 1 = 0
  • x² + 5x + 4 = 0
  • x² - 66x + 64 = 0

Step-by-step explanation:

<u>Given</u>

  • α and β are roots of 4x²-5x-1=0

<u>Then the sum and product of the roots are:</u>

  • α+b = -(-5)/4 = 5/4
  • αβ = -1/4

(i) <u>Roots are α + 1 and β + 1, then we have:</u>

  • (x - (α + 1))(x - (β + 1)) = 0
  • (x - α - 1)(x - β - 1) = 0
  • x² - (α+β+2)x + α+β+ αβ + 1 = 0
  • x² - (5/4+2)x +5/4 - 1/4 + 1 = 0
  • x² - 13/4x + 2= 0
  • 4x² - 13x + 8 = 0

(ii) <u>Roots are 2 - α and 2 - β, then we have:</u>

  • (x + α - 2)(x + β - 2) = 0
  • x² + (a + β - 4)x - 2(α + β) + αβ + 4 = 0
  • x² + (5/4 - 4)x - 2(5/4) - 1/4 + 4 = 0
  • x² - 11/4x - 10/4 - 1/4 + 16/4 = 0
  • x² - 11/4x + 5/4x = 0
  • 4x² - 11x + 5 = 0

(iii) <u>Roots are α² and β², then:</u>

  • (x - α²)(x-β²) = 0
  • x² -(α²+β²)x + (αβ)² = 0
  • x² - ((α+β)² - 2αβ)x + (-1/4)² = 0
  • x² - ((5/4)² -2(-1/4))x + 1/16 = 0
  • x² - ( 25/16 + 1/2)x + 1/16 = 0
  • x² - 33/16x + 1/16 = 0
  • 16x² - 33x + 1 = 0

(iv) <u>Roots are 1/α and 1/β, then:</u>

  • (x - 1/α)(x - 1/β) = 0
  • x² - (1/α+1/β)x + 1/αβ = 0
  • x² - ((α+β)/αβ)x + 1/αβ = 0
  • x² - (5/4)/(-1/4)x - 1/(-1/4) = 0
  • x² + 5x + 4 = 0

(v) <u>Roots are 2/α² and 2/β², then:</u>

  • (x - 2/α²)(x - 2/β²) = 0
  • x² - (2/α² + 2/β²)x + 4/(αβ)² = 0
  • x² - 2((α+β)² - 2αβ)/(αβ)²)x + 4/(αβ)² = 0
  • x² - 2((5/4)² - 2(-1/4))/(-1/4)²x + 4/(-1/4)² = 0
  • x² - 2(25/16 + 8/16)/(1/16)x + 4(16) = 0
  • x² - 2(33)x + 64 = 0
  • x² - 66x + 64 = 0

You might be interested in
2 Examine the graph shown below. 1 2 1 3 2 Enter the slope of the line.​
exis [7]

Answer:

4/5 or 0.8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
If the product of two positive numbers is forty eight, and one number is two greater than the other, what are the two numbers?
zaharov [31]
The two numbers are eight and six
3 0
3 years ago
Determine whether the events are independent (I) or dependent (D). Place your answer in the blank provided. 1. Ramiro draws a ma
Stels [109]

Answer:

Independent events

Step-by-step explanation:

Given that:

Ramiro draws a marble from a jar without replacement and then flips a coin

Let E_1 be the event that Ramiro draws a marble without replacement and;

Let E_2 be the event of flipping a coin.

Let's have an analogy so that we can better understand the concept of independent and dependent events.

Consider a random experiment in which a marble is drawn from a jar without replacement and a fair coin is flipped together.

The event E_1  does not in any way affect the event E_2  of a head or a tail showing up in  a flip of a coin.

Therefore, we say that E_1  and E_2   are independent events.

Suppose the event  E_1  affects or influence the event E_2  , then we can say they are dependent events.

4 0
3 years ago
Harold move no more than 43 of his sheep and goats into another field. fewer than 22 this animals are goats.
user100 [1]
A is the answer
I think
8 0
3 years ago
What are the domain and range of<br> g(x) = -2(x – 10)2 + 12?
disa [49]

Answer:

17

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • An oblique cylinder has a radius of 10 units and slant length of 26 units. What is the volume of the cylinder?
    6·2 answers
  • Charles has read 180 pages of a book this is 3/4 of the total number of pages in the book If P represents the number of pages in
    7·2 answers
  • A secant and a tangent meet at a 90° angle outside the circle. What must be the difference between the measures of the intercept
    11·2 answers
  • What is another way to name 1/4
    15·2 answers
  • Hey I need help on #9 I know the answer is A how do I get to that answer
    8·1 answer
  • EXPLAIN PLEASE!!:)))))
    6·1 answer
  • ✧・゚:Multiple Choice:・゚✧
    15·2 answers
  • Find the slope of the line that goes through the points (-4, 4) and (4, 6).
    14·2 answers
  • Find the m GEOMETRY 9th:)
    12·1 answer
  • A new company, Games 2 U, is selling unlimited video game rentals online for up to 5 devices. They are offering two different pr
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!