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3 years ago

11

i want to get rid of my points and give back to the community of brainly its helped me so much and i and just wanted to say than

ks so to get the points just say what your favorate color is

2 answers:

san4es73 [151]3 years ago

4 0

Answer:

mine is blue

Step-by-step explanation:

because it the color of the sky

Lana71 [14]3 years ago

4 0

Answer:

tyyy

Step-by-step explanation:

You might be interested in

You've just purchased 12 lb of celery. You take it back to your kitchen and proceed to trim and cut it into pieces, ending up wi

Alecsey [184]

We should know that ⇒ 1 lb = 16 oz

The amount of purchased celery = 12 lb = 12 * 16 = 192 oz
<span>Trim and cut it into pieces, ending up with 5.5 oz of trim.
</span><span>
</span><span>The yield will be = 192/5.5 = 34.91
</span><span>
</span><span>Taking the smallest integer number.
</span><span>
</span><span>So, the yield = 34
</span><span>
</span><span>which will be equal = 34*5.5 = 187 oz
</span><span>
</span><span>
</span><span>So, the yield </span>percentage = $\frac{187}{192} *100 = 97.4 \%$

3 0

3 years ago

A particle moving in a planar force field has a position vector x that satisfies x'=Ax. The 2×2 matrix A has eigenvalues 4 and 2

andrey2020 [161]

Answer:

The required position of the particle at time t is: $x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}$

Step-by-step explanation:

Consider the provided matrix.

$v_1=\begin{bmatrix}-3\\1 \end{bmatrix}$

$v_2=\begin{bmatrix}-1\\1 \end{bmatrix}$

$\lambda_1=4, \lambda_2=2$

The general solution of the equation $x'=Ax$

$x(t)=c_1v_1e^{\lambda_1t}+c_2v_2e^{\lambda_2t}$

Substitute the respective values we get:

$x(t)=c_1\begin{bmatrix}-3\\1 \end{bmatrix}e^{4t}+c_2\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}$

$x(t)=\begin{bmatrix}-3c_1e^{4t}-c_2e^{2t}\\c_1e^{4t}+c_2e^{2t} \end{bmatrix}$

Substitute initial condition $x(0)=\begin{bmatrix}-6\\1 \end{bmatrix}$

$\begin{bmatrix}-3c_1-c_2\\c_1+c_2 \end{bmatrix}=\begin{bmatrix}-6\\1 \end{bmatrix}$

Reduce matrix to reduced row echelon form.

$\begin{bmatrix} 1& 0 & \frac{5}{2}\\ 0& 1 & \frac{-3}{2}\end{bmatrix}$

Therefore, $c_1=2.5,c_2=1.5$

Thus, the general solution of the equation $x'=Ax$

$x(t)=2.5\begin{bmatrix}-3\\1\end{bmatrix}e^{4t}-1.5\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}$

$x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}$

The required position of the particle at time t is: $x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}$

6 0

3 years ago

16. If the base of parallelogram is 10 cm and its corresponding height is 5

lara [203]

Answer:

50 cm²

The answer is that because the area of a parallelogram is height × width.

height = 10cm

width = 5 cm

10 × 5= 50cm²

7 0

2 years ago

Write (-14/25)(45/49) in simplest form

allochka39001 [22]

-18/35

is the answer hope I am helpful

8 0

3 years ago

Which list shows all the factors of 36?

almond37 [142]

Answer:

1,2,3,4,6,9,12,18,36 Is correct one

8 0

2 years ago

Read 2 more answers