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2 years ago

Can someone plz help me -it can be more then 1 comma....

Mathematics

2 answers:

Schach [20]2 years ago

3 0

Answer:

denise,

Step-by-step explanation:

that is the only one i think

Mamont248 [21]2 years ago

3 0

Answer:

you have it in the right spot already!

Step-by-step explanation:

You might be interested in

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

Louie made 8.1 liters of fruit punch using only grape juice and carbonated water. He used 4.2 liters of grape juice. The equatio

seropon [69]

4.2 +c = 8.1
c = 8.1 -4.2 = 3.9 . . . . subtract 4.2 from both sides

a.) 3.9 liters . . . . . is the appropriate choice

5 0

3 years ago

Solve graphically,<br>x - y = 7 and x + y = 3<br>

Rzqust [24]

Answer:

x-y=7

slope:1

y-int:(0,7)

x+y=3

slope: -1

y-int:(0,3)

hope this helps!!:)

Step-by-step explanation:

4 0

2 years ago

Which of the following states the law of supply and demand? A. All things being equal, the higher the price of a good or service

zysi [14]

Answer:

The answer is A ........

4 0

2 years ago

What is the value of x in the circle on the right

german

To solve this we need to use Pythagorean theorem

${x}^{2} + {14}^{2} = (9 + x) ^{2} \\ {x}^{2} + 196 = 81 + 18x + {x}^{2} \\ 18x = 115 \\ x = 6.3(8) \simeq6.4$

Answer: x≈6.4

8 0

3 years ago