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
Mumz [18]
3 years ago
6

Let W= { (x, y, z) |x=1|; y, z ∈ℝ } Prove that W is a subspace of ∈ℝ How can I resolve this ?

Mathematics
1 answer:
Nataly [62]3 years ago
5 0

Answer:

W is not a subspace.

Step-by-step explanation:

Notice that (-1,2,2) and (-1,5,3) are both elements of W. Because its x coordinate, x = -1, satisfy the condition |x| = 1.

but (-1,2,2) + (-1,5,3) = (-2,7,5) do not belongs to W. Because its first coordinate, x =-2, do not satisfy |x| = 1.  

You might be interested in
Name the quadrant in which the angle is in cos theta>0, csc theta<0
bekas [8.4K]

Answer:

Quadrant 4

Step-by-step explanation:

Csc = 1/sin

Cos is positive in quadrants 1 and 4

Sin is negative in quadrants 3 and 4

7 0
3 years ago
Select all expressions equivalent to (4²) 2 x 4??
Bond [772]
4\2 2x=25 pls follow
5 0
3 years ago
Find the value of x for which the lines r and s are parallel. answers: 13 47 48 12
juin [17]

Answer:

x=12

Step-by-step explanation:

142 and 3x+2 are supplementary angles when the lines are parallel

142+ 3x+2 = 180

Combine like terms

144+3x= 180

Subtract 144 from each side

144+3x-144=180-144

3x=36

Divide by 3

3x/3 = 36/3

x =12

3 0
3 years ago
You sell 500 shares of Arena Pharmaceuticals (ARNA) at $3.15 . You purchased the stock at $1.28. How much profit did you make?
denis23 [38]

Answer:

Profit = 935

Step-by-step explanation:

Purchase price: 500×1.28=640

Selling price: 500×3.15=1575

Profit: selling price - purchase price = profit

1575 - 640 = 935

Profit = 935

8 0
3 years ago
If you borrow $700 for 5 years at
Otrada [13]

The amount you would pay altogether if you borrow $500 for  5 years at

an annual interest rate of 7% is $945.

<h3>How much would you pay altogether?</h3>

The amount you would pay altogether is the sum of the amount borrowed and the interest.

Total value of the debt = interest + amount borrowed

Interest = $700 x 7% x 5 = $245

Total value of the debt = $245 + $700 = $945

4 0
2 years ago
Other questions:
  • A county government says that a safe level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm.
    9·1 answer
  • If 9x + 2a =ac - bx, then x equals
    8·1 answer
  • 0.25 liter = how many milliliters would that be?
    14·1 answer
  • Three students had $12.00 total and went to a snack bar where their bill was $8.57. They want to share equally the money that is
    6·1 answer
  • mo's farm sold a total of 165 pounds of Apples and peaches. she sold Apple for $1.75 per pound and peaches for $2.50 per pound.
    7·2 answers
  • Allisha went on a trip. She drove 882 miles in 14 hours. What was her average speed? Show your work.
    5·2 answers
  • The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?
    5·1 answer
  • Hello peepers! I need help ASAP please. Thanks!
    11·1 answer
  • What is the value of x if 15 = 5x + 45 ?
    12·2 answers
  • Please explain this in steps please friends​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!