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
hjlf
3 years ago
9

Please help me with this! show that {1,2} ⊆ {x|x^4 - x^3 - x^2 - 5x + 6 = 0}

Mathematics
1 answer:
Llana [10]3 years ago
6 0

The set \{x\mid x^4-x^3-x^2-6x+6=0\} is the set of all values of x that are solutions to the given equation. So all you need to do is check whether x=1 and x=2 satisfy the equation.

x=1\implies 1^4-1^3-1^2-5+6=0

x=2\implies2^4-2^3-2^2-10+6=0

The equation holds, so both 1 and 2 are solutions, and hence \{1,2\} is a subset of the solutions.

You might be interested in
NEED HELP ASAP !!! Please
Sergio039 [100]
I  do not know what is your question.
3 0
3 years ago
1. y-23=55 2. x-14= -8
leva [86]

Answer:

1. y = 32

2. x = 6

3. -33 = n

4. a = -15.6

Step-by-step explanation:

1.

y-23=55

 +23  +23          (23 cancels)

y = 32

2.

x - 14 = -8

 +14      +14           (-14 cancels)

   x = 6

3.

-15 = n + 18

    -18       -18          (18 cancels)

    -33 = n

4.

18.3 + a = 2.7

-18.3        -18.3        (18.3 cancels)

         a = -15.6

8 0
3 years ago
Solve the given initial-value problem. <br> (2y + 2t − 3) dt + (8y + 2t − 1) dy = 0, y(−1) = 2.
katrin2010 [14]

Answer:

holy ish  ive never seen anything like this in my life

Step-by-step explanation:

7 0
4 years ago
Can someone help me with question 6 please
SIZIF [17.4K]
A) 4a+3w
b) 2b+h
c) 3(w+h)
d) (4a+3w)(2b+h) - 3(w+h)
just expand brackets for d and simplify
6 0
3 years ago
Read 2 more answers
Find three consecutive even numbers whose sum is 1674.
Norma-Jean [14]

Answer:

556, 558, and 560

Step-by-step explanation:

1674/3 = 558 (An even number, yay)

So 558 + 558 + 558 = 1674

Subtract two from the first one and add two to the last (still equal)

556 + 558 + 560

adding them equals 1674 so the answer is

556, 558, and 560

7 0
3 years ago
Other questions:
  • Two added to three times a number m is the same as 18
    10·2 answers
  • How can 2x^2=x^2+4x+8 be set up as a systems of equations
    8·1 answer
  • The family size bottle of shampoo holds 10 fluid ounces (fl. oz.) of sunscreen. The regular bottle holds 70% percent less. How m
    8·1 answer
  • INSTRUCTIONS: A medincine for dogs indicates that the medicine should be administered in the ration 0.5 tsp per 5 lbs, based on
    9·1 answer
  • HELP ME 20 POINTS IF YOU PUT THE WRONG ANSWER YOUR GETTING REPORTED AND ACUTELY PUT THE ANSWER
    10·2 answers
  • MATH HELP ITS TIMED.................
    9·1 answer
  • Someone please help. i’ve been staring at this for 20 minutes and i’m so confused.
    14·1 answer
  • Hello today is my birthday please help !!
    5·1 answer
  • ammy the trainer has two solo workout plans that she offers her clients: Plan A and Plan B. Each client does either one or the o
    9·1 answer
  • I Need help asap!!!!!!!!!!!!!!!!!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!