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
trapecia [35]
3 years ago
11

Compute the product using (a) the definition where Ax is the linear combination of the columns of A using the corresponding entr

ies in x as weights, and (b) the row-vector rule for computing Ax. If a product is undefined, explain why. Set up the linear combination of the columns of A using the corresponding entries in x as weights. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. (Type the factors and terms of your expression with the column matrices in the same order as they appear in the original matrix. In each term, type first the coefficient and then the column matrix.) The matrix-vector Ax is not defined because the number of columns in matrix A does not match the number of entries in the vector x. The matrix-vector Ax is not defined because the number of rows in matrix A does not match the number of entries in the vector x.
Mathematics
1 answer:
Vsevolod [243]3 years ago
5 0

Answer:

7

Step-by-step explanation:

You might be interested in
What is the perimeter of the shaded figure?
anzhelika [568]
Just go to quizlet and it’ll give you all the answers and everything you need
6 0
3 years ago
A construction company wants to hire carpenters for $220 a day and plumbers for $260 a day. The company wants to hire at least 1
joja [24]

Answer:


Step-by-step explanation:

Yes the company can hire 6 carpenters and 12 pumbers

So first lets find out how much it costs to have 6 carpenter for $220 a day.

$220 × 6 = $1320  this is how much it cost to pay 6 carpenters for one day.

Now lets find how much it cost to 12 plumbers at $260 a day.

$260 × 12 = $3120 this is how much it costs to pay 12 plumbers a day.

The total amount you have to pay to the workers is:

$3120 + $1320 = $4440

Your budget was $4500 so the total costs for the workers is $4440 which means you can hire those workers and you would still have $60.


3 0
3 years ago
You have 59 to spend on lip balm and hand sanitizer. The equation 1.5x + 2.5y = 9 represents this situation, where x is tubes of
il63 [147K]

Answer:

Step-by-step explanation:

you have to keep the x and the y sepret and then you can divied one by nine then you get the answer so there you go

3 0
3 years ago
Will a large-sample confidence interval be valid if the population from which the sample is taken is not normally distributed? e
Dovator [93]

A normal distribution is a type of continuous probability distribution for a real-valued random variable in statistics.

Yes, the large-sample confidence interval will be valid.

<h3>What is meant by normal distribution?</h3>

A normal distribution is a type of continuous probability distribution for a real-valued random variable in statistics.

The normal distribution, also known as the Gaussian distribution, is a symmetric probability distribution about the mean, indicating that data near the mean occur more frequently than data far from the mean.

The confidence interval will be valid regardless of the shape of the population distribution as long as the sample is large enough to satisfy the central limit theorem.

<h3>What does a large sample confidence interval for  a population mean?</h3>

A sample is considered large when n ≥ 30.

By 'valid', it means that the confidence interval procedure has a 95% chance of producing an interval that contains the population parameter.

To learn more about normal distribution, refer to:

brainly.com/question/23418254

#SPJ4

8 0
2 years ago
In Wellington, a city of 360,000 citizens, there has been an outbreak of vampires and werewolves There are 3,000 people infected
Alex17521 [72]

Answer:

0.0286 or 2.86%

Step-by-step explanation:

The total number of people that have werewolfism is 21,000.

Of those 21,000, 600 also have vampirism, while the remaining 20,400 do not. Therefore, the probability that someone has vampirism, given that they have werewolfism is:

P(V|W)=\frac{N_{V\cap W}}{N_W}\\P(V|W)=\frac{600}{21,000} \\P(V|W)=0.0286=2.86\%

The probability is 0.0286 or 2.86%.

3 0
3 years ago
Other questions:
  • Which expression is equivalent to the expression shown? Need help
    10·1 answer
  • The distance between -2 1/4 and 1 1/2
    11·1 answer
  • Samantha’s college runs on a trimester schedule so she receives a bill 3 times a year for tuition. Each trimester costs $1,450,
    11·1 answer
  • Cecilia bought a necklace made of silver and blue beads. The necklace had 30 silver beads and 36 blue beads. The information car
    8·2 answers
  • D/dt integral from 0,2x of (e^t+2t)dt is?
    7·1 answer
  • What is the slope of the line in the graph? <br><br> -4/3<br> -3/4<br> 3/4<br> 4/3
    5·1 answer
  • Someone be generous &amp; help me please I’ll return the favor
    5·1 answer
  • I need halp asap!!!!
    10·1 answer
  • What is the distance between (-5, -5) and (−9,−2)
    8·2 answers
  • The coach recorded the scores of nine different basketball players in their last game. ● The median number of points scored by t
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!