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
melisa1 [442]
3 years ago
11

Solve for x.

Mathematics
1 answer:
Rudiy273 years ago
8 0
5x^2 - 80 = 0
5x^2 = 80
x^2 = 80/5
x^2 = 16
x = sqrt 16
x = (4,-4) <===

You might be interested in
I need help!!! please and thank you
RUDIKE [14]

Answer:

the height................

7 0
3 years ago
Help me plz and thank you
Kay [80]
The second one - 6/21
3 0
3 years ago
Is matrix multiplication comutative?
konstantin123 [22]

Answer:

Matrix multiplication is not conmutative

Step-by-step explanation:

The matrix multiplication can be performed if the number of columns of the first matrix is equal to the number of rows of the second matrix

Let A with dimension mxn and B with dimension nxp represent two matrix

The multiplication of A by B is a matrix C with dimension mxp, but the multiplication of B by A is can't be calculated because the number of columns of B is not the number of rows of A. Therefore, you can notice that is not conmutative in general.

But even if the multiplication of AB and BA is defined (For example if A and B are squared matrix of 2x2) the multiplication is not necessary conmutative.

The matrix multiplication result is a matrix which entries are given by dot product of the corresponding row of the first matrix and the corresponding column of the second matrix:

A=\left[\begin{array}{ccc}a11&a12\\a21&a22\end{array}\right]\\B= \left[\begin{array}{ccc}b11&b12\\b21&b22\end{array}\right]\\AB = \left[\begin{array}{ccc}a11b11+a12b21&a11b12+a12b22\\a21b11+a22b21&a21b12+a22b22\end{array}\right]\\\\BA=\left[\begin{array}{ccc}b11a11+b12a21&b11a12+b12a22\\b21a11+b22ba21&b21a12+b22a22\end{array}\right]

Notice that in general, the result is not the same. It could be the same for very specific values of the elements of each matrix.

6 0
3 years ago
During halftime of a basketball game, a slingshot lunches t-shirts at the crowd. A T-shirt is launched from a height of 5 feet w
AfilCa [17]
Answer is 37 hope this helps
7 0
3 years ago
What is decending order​
ludmilkaskok [199]

Descending order is a list of numbers starting at the highest value going to the lowest. For example 10, 8, 5, 2, 1, -1, -4.

4 0
3 years ago
Other questions:
  • Tell me quick and i will give thou brainliest
    6·2 answers
  • You have linear functions p(x) and q(x). You know p(2)=3, and p(q(x))=4x+7 for all x. Find q(-1).
    7·1 answer
  • TRANSFORMATI IN CENTIMETRI:20MM,60MM,300MM,670MM
    7·2 answers
  • What is the mode of the following numbers?<br> 9, 10, 6, 5, 6
    8·2 answers
  • Who weighed more at the beginning of the show? *
    6·2 answers
  • Please answer quickly.
    15·1 answer
  • Pls work this out thanx
    12·2 answers
  • What fraction of a gallon is a quart
    5·2 answers
  • 6*10^8 is how many times as large as 2*10^3?
    7·2 answers
  • Which expressions are equivalent to 28?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!