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Stella [2.4K]
3 years ago
12

At a car garage there are 100 vehicles, 60 of which are cars, 30 are vans and the remainder are

Mathematics
2 answers:
IceJOKER [234]3 years ago
5 0

Answer:

10%

Step-by-step explanation:

since there are 100 cars it makes it easy to make into a percentage. so since there are only 10 cars the awnser is 10%

zhannawk [14.2K]3 years ago
3 0

Answer:

there are 10 of the other kind of cars

Step-by-step explanation:

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Evaluate 3x^2+5, when x= -5 and y= -9
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Step-by-step explanation:

3x {}^{2}  + 5

(3 \times  - 5) {}^{2}  + 5

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225 + 5

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Can anyone help with problem 9.9 in the middle pls
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Answer:

Angle 1: 53

Angle 2: 72

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Angle 4: 127

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Gabriela walked to a toy store around noon and , after browsing for 2222 minutes, decided to buy a race car for $9.22. Gabriela
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3 years ago
Given the matrices: 1 2 A= 1 -1 2 1 1 B= 3 4 Calculate AB: C11 C12 [2.1] х 1 2 3 4 C21 C22 C11 = C12 = -2 C22 - C215 DONE​
eduard

Answer:

\:c_{11}=-2,\:\:\:c_{12}=-2

\:c_{21}=5,\:\:\:c_{22}=8

Step-by-step explanation:

Given the matrices

A=\begin{pmatrix}1&-1\\ 2&1\end{pmatrix}

B=\begin{pmatrix}1&2\\ \:3&4\end{pmatrix}

Calculating AB:

\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}

Multiply the rows of the first matrix by the columns of the second matrix

                                   =\begin{pmatrix}1\cdot \:1+\left(-1\right)\cdot \:3&1\cdot \:2+\left(-1\right)\cdot \:4\\ 2\cdot \:1+1\cdot \:3&2\cdot \:2+1\cdot \:4\end{pmatrix}

                                   =\begin{pmatrix}-2&-2\\ 5&8\end{pmatrix}

Hence,

\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}=\begin{pmatrix}-2&-2\\ \:5&8\end{pmatrix}

Therefore,

\:c_{11}=-2,\:\:\:c_{12}=-2

\:c_{21}=5,\:\:\:c_{22}=8

5 0
2 years ago
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