What is the perimiter of the rectangle? Write your answer in scientific notation.

Mathematics

1 answer:

7nadin3 [17]3 years ago

8 0

You go to a poop school if they teach u that poop

You might be interested in

(7i)(7i)<br>help! please show steps

exis [7]

Answer:

-49

Step-by-step explanation:

multiply 7 with 7 then i with i and lastly multiply the result numbers

7i × 7i ➡ 7 × 7 = 49

i × i = i^2

49 × i^2 = 49i^2

i^2 = -1 ➡ 49 × (-1) = -49

7 0

3 years ago

Justin needs to make a total of 60 deliveries this week. So far he has completed 27 of them. What percentage of his total delive

andre [41]

Answer:

45%

Step-by-step explanation:

Given:

Total deliveries to be made : 60

Deliveries completed : 27

Deliveries completed as a percentage of the total deliveries

= 27/60 x 100%

= 45%

6 0

4 years ago

Read 2 more answers

alice has 1/5 many miniatures cars as sylvester has . silvester has 35 miniatures cars how many miniatures car does alice have

lora16 [44]

Take 35 and divide it by 5.
35/5 = 7
Alice has 7 miniature cars.

4 0

4 years ago

Write the linear system of differential equations in matrix form then solve the system.

zvonat [6]

In matrix form, the system is

$\dfrac{\mathrm d}{\mathrm dt}\begin{bmatrix}x\\y\end{bmatrix}=\begin{bmatrix}1&1\\4&1\end{bmatrix}\begin{bmatrix}x\\y\end{bmatrix}$

First find the eigenvalues of the coefficient matrix (call it $\mathbf A$ ).

$\det(\mathbf A-\lambda\mathbf I)=\begin{vmatrix}1-\lambda&1\\4&1-\lambda\end{vmatrix}=(1-\lambda)^2-4=0\implies\lambda^2-2\lambda-3=0$

$\implies\lambda_1=-1,\lambda_=3$

Find the corresponding eigenvector for each eigenvalue:

$\lambda_1=-1\implies(\mathbf A+\mathbf I)\vec\eta_1=\vec0\implies\begin{bmatrix}2&1\\4&2\end{bmatrix}\begin{bmatrix}\eta_{1,1}\\\eta_{1,2}\end{bmatrix}=\begin{bmatrix}0\\0\end{bmatrix}$

$\lambda_2=3\implies(\mathbf A-3\mathbf I)\vec\eta_2=\vec0\implies\begin{bmatrix}-2&1\\4&-2\end{bmatrix}\begin{bmatrix}\eta_{2,1}\\\eta_{2,2}\end{bmatrix}=\begin{bmatrix}0\\0\end{bmatrix}$