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
devlian [24]
3 years ago
11

Select the correct answer from the drop-down menu. Fill in the missing number in the equation.

Mathematics
1 answer:
noname [10]3 years ago
7 0

Answer:

8

Step-by-step explanation:

a A + b A where A is a matrix and a and b are scalars

( a+b) A

3+5 \left[\begin{array}{cc}-1&2\\4&-5\end{array}\right] = 8\left[\begin{array}{cc}-1&2\\4&-5\end{array}\right]

         

You might be interested in
Alicia says the expression 2(m +4)+5 is equivalent to the expression 2m+13. Identify two properties that can be used to support
Xelga [282]
Associative property and distributive property
6 0
3 years ago
ABCD is a parallelogram. If ad = 2x + 10 and CD = 4x - 20, for what value of x will abcd be a rhombus
dimaraw [331]

Answer:

15

Step-by-step explanation:

All sides of a rhombus are equal, so

2x+10=4x-20 \\ \\ 10=2x-20 \\ \\ 2x=30 \\ \\ x=15

3 0
1 year ago
How to prove that square root of x where x is rational is rational?
Verdich [7]

In general, you cannot prove that because it is not true.

2 is rational. √2 is not.

5 0
3 years ago
Does anyone know why x is normally used for an unknown number?
jeka94

Then you are able to substitute in X and it can have a infinite number of values catered to the question.

7 0
3 years ago
The difference of 8 less a number n, multiplied by twelve, is equal to 3 more than the number. Which of the following equations
makkiz [27]

Answer:

The equation that can be used to find the missing number is 96 - 12n = 3 + n

Step-by-step explanation:

The difference of 8 less a number n

This is 8 - n

Multiplied by twelve

This is:

12(8 - n) = 96 - 12n

Is equal to 3 more than the number.

96 - 12n = 3 + n

The equation that can be used to find the missing number is 96 - 12n = 3 + n

3 0
3 years ago
Read 2 more answers
Other questions:
  • If two angles are supplementary, which is the sum of their measurements?
    11·1 answer
  • Please help Ms.Perkins needs to order art supplies for the entire school she would like to get at least 8,000 peices of construc
    11·2 answers
  • -5x+8-4x2-4x+2x2 simplifying
    14·1 answer
  • Stacy Wood at the Moore School of Business in South Carolina is studying what people crave, familiar food or new food, during pe
    9·1 answer
  • a baseball team won two out of their last four games. in how many different orders could they have two wins and two losses in fo
    10·1 answer
  • Liam has this spinner.
    5·1 answer
  • The sum of three consecutive odd integers is 153. Find the three odd integers.
    14·1 answer
  • BRAINLIEST IF RIGHT Solve for x <br> -3x-6=16<br> X = -7<br> X = 7.5<br> X = 3<br> X = -4
    10·2 answers
  • A ball is thrown from an initial height of 6 feet with an initial upward velocity of 17 ft/s. The ball's height h (in feet) afte
    5·1 answer
  • I REALLY NEED HELP MY GRADES GO IN TONIGHT AND I CANT SOLVE THIS I NEED A REAL ANSWER I WILL CHECK BEFORE GIVING POINTS!!!!!!!!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!