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Sergio [31]
3 years ago
7

1. Which situation is best described by the

Mathematics
1 answer:
liberstina [14]3 years ago
3 0

Answer:

c

Step-by-step explanation:

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#38 . Please need help !!
Alexxandr [17]
Draw a number line with A through Z then find the missing values. Graph them and see what they spell is it a palindrome???
7 0
3 years ago
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Factor the expression completely over the complex numbers. <br><br> x^3-4x^2+4x-16
Orlov [11]

First you must know that is i∧2= -1

x∧3-4x∧2+4x-16 = x∧2 (x-4) + 4 (x-4) = (x-4) (x∧2+4) = (x-4) (x∧2-(-4)) =

= (x-4) (x∧2-(-1) *4) = (x-4) (x∧2- i∧2*2∧2) = (x-4) (x∧2-(2i)∧2) = (x-4) (x-2i) (x+2i)

Good luck!!!

5 0
3 years ago
What degree of rotation is represented on this matrix
Korvikt [17]

Answer:

Option B is correct

the degree of rotation is, -90^{\circ}

Step-by-step explanation:

A rotation matrix is a matrix that is used to perform a rotation in Euclidean space.

To find the degree of rotation using a standard rotation matrix i.e,

R = \begin{bmatrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{bmatrix}

Given the matrix: \begin{bmatrix}0 & 1 \\ -1 & 0\end{bmatrix}

Now, equate the given matrix with standard matrix we have;

\begin{bmatrix}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta \end{bmatrix} =  \begin{bmatrix}0 & 1 \\ -1 & 0\end{bmatrix}

On comparing we get;

\cos \theta = 0       and -\sin \theta =1  

As,we know:

  • \cos \theta = \cos(-\theta)
  • \sin(-\theta) = -\sin \theta

\cos \theta = \cos(90^{\circ}) = \cos( -90^{\circ})

we get;

\theta = -90^{\circ}

and

\sin \theta =- \sin (90^{\circ}) = \sin ( -90^{\circ})

we get;

\theta = -90^{\circ}

Therefore, the degree of rotation is, -90^{\circ}

7 0
3 years ago
The function C(f) = (f – 32) converts a temperature, f, in degrees Fahrenheit, to a
Vera_Pavlovna [14]

That function is incorrect.
The correct function is . . . .    C(f) = (5/9) (f - 32) .

If a Fahrenheit thermometer reads 52° ,
then a Celsius thermometer should read . . .

         C (52) = (5/9) (52 - 32) =

                        (5/9) (20)  =  <em>(11 and 1/9)°C</em>.


8 0
3 years ago
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Which is the graph of y = [x]-2?<br> Please please helped timed 20points
zubka84 [21]

Answer:

3rd graph

Step-by-step explanation:

5 0
2 years ago
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