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
iVinArrow [24]
3 years ago
8

Matrix A = [6 -12 4 8]. What is matrix X if 1/2x=A?

Mathematics
2 answers:
Flauer [41]3 years ago
8 0

Answer:

D) [12 8 -24 16]

Step-by-step explanation:

edge2020 got it right

Step2247 [10]3 years ago
4 0

Answer:

X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]

Step-by-step explanation:

A matrix is given by

A = \left[\begin{array}{cccc}6&-12&4&8\end{array}\right]

Now, we have to find the matrix X if \frac{1}{2} X = A

⇒ X = 2A

Now, multiplication of a constant with a matrix means multiplication with that constant with all the terms of the matrix.

So, X = \left[\begin{array}{cccc}6 \times 2&-12 \times 2&4 \times 2&8 \times 2\end{array}\right]

⇒ X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right] (Answer)

You might be interested in
A bag contains 15 marbles. The probability of randomly selecting a green marble is One-fifth. The probability of randomly select
dsp73

Given:

Total number of marbles = 15

Probability of randomly selecting a green marble = \dfrac{1}{5}.

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble = \dfrac{2}{25}.

To find:

The number of blue marbles.

Solution:

Let the number of blue marbles be x.

\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

P(Blue)=\dfrac{x}{15}

It is given that,

P(Green)=\dfrac{1}{5}

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is \dfrac{2}{25}. So,

P(Green)\times P(Blue)=\dfrac{2}{25}

\dfrac{1}{5}\times \dfrac{x}{15}=\dfrac{2}{25}

\dfrac{x}{75}=\dfrac{2}{25}

Multiply both sides by 75.

\dfrac{x}{75}\times 75=\dfrac{2}{25}\times 75

x=2\times 3

x=6

Therefore, the number of blue marbles in the bag is 6.

3 0
3 years ago
Select the correct answer. How many solutions exist for | 0.5x+1|=5 ? A. 0 B. 1 C. 2 D. 3
Neko [114]

Answer:

the answer is one

Step-by-step explanation:

I used a calculator

4 0
2 years ago
Read 2 more answers
Nine-fourteenths of 6x redused by 10
Oliga [24]

(9/14)*6x = (27/7)x

And that is reduced by 10, then...

27/7x - 10

6 0
3 years ago
Use number line f to answer the questions.
Andre45 [30]

Answer:

r u in school

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Correct simplification of 8x^2(5x + 2x^2 − 3)??
pantera1 [17]
<span><span>16<span>x^4</span></span>+<span>40<span>x^3</span></span></span>−<span>24<span>x^<span>2  
That is it</span></span></span>
5 0
3 years ago
Other questions:
  • What is the equation of line I?
    5·1 answer
  • A triangle is reflected across the line x=2. which of the following is true?
    10·2 answers
  • This is hard can I get help
    12·1 answer
  • Find the total cost: $225 bill with a 35% markup
    10·2 answers
  • What is the formula for the perimeter of a rectangle?
    6·2 answers
  • Solve on the interval [0,2pi)<br>1+ sin 0=1/2​
    15·1 answer
  • What is the sum of a number that is 5 times the number of 500
    5·1 answer
  • Hannah Borjas
    11·1 answer
  • 3. Kim's farm is 1.292 acres. Jack's
    7·2 answers
  • 6. Cereal costs $2.79 for 16.4 ounces. At this rate, if you buy 25 ounces, how much change would you get back from a $5 bill? (R
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!