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
4vir4ik [10]
3 years ago
7

What do I do? what's Ax??

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
5 0

A=\left[\begin{array}{ccc}5&-4\\3&6\end{array}\right] \\\\A_x=\left[\begin{array}{ccc}12&-4\\66&6\end{array}\right]

|A_x|=\left|\begin{array}{ccc}12&-4\\66&6\end{array}\right|=(12)(6)-(66)(-4)=72+264=336

You might be interested in
A sewing machine can sew 500 stitches in 2/3 min.<br><br> Complete the unit rate.
Nesterboy [21]
500 stiches/2/3 min = 750 stiches per minute
7 0
3 years ago
Read 2 more answers
Mika is a local farmer who is interested in how often residents in her town go to a farmer's market each month. She surveys 124
TEA [102]

Answer:

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

Step-by-step explanation:

Margin of error

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation and n is the size of the sample.

Standard deviation of 1.3

This means that \sigma = 1.3

She surveys 124 families

This means that n = 124

Margin of error and meaning:

M = z\frac{\sigma}{\sqrt{n}}

M = 2.58\frac{1.3}{\sqrt{124}}

M = 0.3012

The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.

6 0
2 years ago
What is the distance between (-6, 8) and (-3, 9)? Either 4, 6, root 10, or root 15
notka56 [123]
Hope this helps you

8 0
3 years ago
1. Does the following function represent exponential growth or decay?
svp [43]

Answer:

B - Decay

Please make my answer the brainliest!

Step by step explanation:

7 0
2 years ago
What is the solution to the equation below<br><br> 4w=2/3
S_A_V [24]

Answer:

w=1/6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What's 15/.75 and 99/162? Show works please. :)
    11·1 answer
  • WILL GIVE BRAINLIEST
    10·2 answers
  • Plz help .......................
    7·1 answer
  • Which of the following rational numbers is equal to 3 point 4 with bar over 4?
    6·1 answer
  • What is the volume of the figure?
    6·1 answer
  • What is the rate of change? I will give u a crown if ur right just help ASAP
    8·2 answers
  • Find the value of x in the triangle shown below.<br> X<br> 5<br> 6
    15·2 answers
  • 6 ft<br> 3 ft<br> 6 ft<br> 15 ft<br> Find the area of the figure above.
    9·2 answers
  • Find the lowest terms<br> fraction that's equal<br> to 0.33.
    12·2 answers
  • you are at the market square (0,0) and want to get to the doctors office. following the grid lines,what is the shortest route
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!