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
Aleonysh [2.5K]
2 years ago
10

Help please i don’t know the answer

Mathematics
1 answer:
son4ous [18]2 years ago
7 0

Answer:

6A=8B=6\left[\begin{array}{ccc}-4&-1&-9\\-9&6&9\\-1&-1&3\end{array}\right] -8\left[\begin{array}{ccc}-10&-2&-5\\9&-7&-1\\9&-4&2\end{array}\right]

=\left[\begin{array}{ccc}-24&-6&-54\\-54&36&54\\-6&-6&18\end{array}\right] -\left[\begin{array}{ccc}-80&-56&-40\\72&-56&-8\\72&-32&16\end{array}\right]

=\left[\begin{array}{ccc}56&50&-14\\-120&92&62\\-78&26&2\end{array}\right]

So,~ A ~is ~your~ answer~

<u>---------------------------</u>

<u>hope it helps..</u>

<u>have a great day!!</u>

You might be interested in
HELPP!!!!!
Alja [10]

Answer:

choice b

Step-by-step explanation:

3.49

____ = 0.1396 ≈ 0.14 or 14 cents per ounce

25

4.79

____ = 0.10644444 ≈ 0.11 or 11 cents per ounce

45

3 0
2 years ago
Question progress<br> Homework Progress<br> The ratio 8:2 in its simplest form is
lidiya [134]

Answer:

4:1

Step-by-step explanation:

just divide by the highest numbe 2 in this case

6 0
3 years ago
A CBS News/New York Times opinion poll asked 1,190 adults whether they would prefer balancing the federal budget over cutting ta
nikklg [1K]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sampling proportions of a proportion p in a sample of size n has mean \mu = p and standard error s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • 1,190 adults were asked, hence n = 1190
  • In fact 62% of all adults favor balancing the budget over cutting taxes, hence p = 0.62.

The mean and the standard error are given by:

\mu = p = 0.62

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.62(0.38)}{1190}} = 0.0141

The probability of a sample proportion of 0.59 or less is the <u>p-value of Z when X = 0.59</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.59 - 0.62}{0.0141}

Z = -2.13

Z = -2.13 has a p-value of 0.0166.

0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

You can learn more about the <u>normal distribution and the central limit theorem</u> at brainly.com/question/24663213

7 0
2 years ago
Please help 25 points
Romashka-Z-Leto [24]

Answer:

y ≤ -5

Step-by-step explanation:

6 0
2 years ago
Two integers a and b have a product of -48
ycow [4]
It’s c because I got it right on the test
3 0
3 years ago
Other questions:
  • After a really rotten year in 2008, a baseball team won 120% as many games in 2009, which was 84 games. How many games did they
    10·2 answers
  • What is the most accurate measurement of 1 pound?
    12·1 answer
  • Chris needs $858 to buy a computer. She has already saved $575. She gets $15 an hour for babysitting and will babysit 12 hours i
    14·1 answer
  • Write an equation in point slope form of the line passes through the given point and has the given slope
    9·1 answer
  • Tan C= <br> Help help help
    9·2 answers
  • I need help what is the sign of a. -b/b when a= 0 and b &lt;0
    10·1 answer
  • Make up a situation where a quantity is changing.'[
    10·1 answer
  • Find m∠A. Put the answer below.<br> m∠A =
    8·1 answer
  • Pls help me thank you
    8·2 answers
  • What is X ? <br> 9(x−1)−8x=−3(x+5).
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!