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blondinia [14]
3 years ago
5

The number of hours that is left for today is half the hours that has passed. what is the time?​

Mathematics
1 answer:
notsponge [240]3 years ago
5 0

Answer:

I think the answer would be 16 , here is my solution if you want

Step-by-step explanation:

2X+X=24

3X=24

X=8

24-8=16 .

Good luck .

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ANSWER ASAP inequalities ​
Evgen [1.6K]
It’s option c. I hope that helped
6 0
2 years ago
Orthogonally diagonalize the​ matrix, giving an orthogonal matrix P and a diagonal matrix D. To save​ time, the eigenvalues are
alexgriva [62]

Answer:

P=\left(\begin{array}{ccc}-\frac{2}{3}&-\frac{2}{3}&\frac{1}{3}\\\frac{1}{\sqrt{5}}&0&\frac{2}{\sqrt{5}}\\-\frac{4}{3\sqrt{5}}&\frac{\sqrt{5}}{3}&\frac{2}{3\sqrt{5}}\end{array}\right)

Step-by-step explanation:

It is a result that a matrix A is orthogonally diagonalizable if and only if A is a symmetric matrix.  According with the data you provided the matrix should be

A=\left(\begin{array}{ccc}-9&-4&2\\ -4&-9&2\\2&2&-6\\\end{array}\right)

We know that its eigenvalues are \lambda_{1}=-14, \lambda_{2}=-5, where \lambda_{2}=-5 has multiplicity two.

So if we calculate the corresponding eigenspaces for each eigenvalue we have

E_{\lambda_{1}=-14}=\langle(-2,-2,1)\rangle,E_{\lambda_{2}=-5}=\langle(1,0,2),(-1,1,0)\rangle..

With this in mind we can form the matrices P, D that diagonalizes the matrix A so.

P=\left(\begin{array}{ccc}-2&-2&1\\1&0&2\\-1&1&0\\\end{array}\right)

and

D=\left(\begin{array}{ccc}-14&0&0\\0&-5&0\\0&0&-5\\\end{array}\right)

Observe that the rows of P are the eigenvectors corresponding to the eigen values.

Now you only need to normalize each row of P dividing by its norm, as a row vector.

The matrix you have to obtain is the matrix shown below

3 0
3 years ago
I do not understand
Pie

Answer:

2500 m^3/1 m^2

Step-by-step explanation:

Going from cm to m is just dividing by 100. So 250,000 cm^3/100= 2,500 m^3

6 0
2 years ago
The log: 20 can be written as
adoni [48]

Answer:

10+10

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
John has a round swimming pool.The distance from the center of the pool to the edge is 3 meters.What is the diameter of John poo
shtirl [24]

Answer:

6 meters

Step-by-step explanation:

Th equation to find the diameter of a circle is,

radius * 2.

The radius of the swimming pool is 3, so 3 * 2 is 6.

Hope this helps!!

Let me know if I'm wrong...

8 0
3 years ago
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