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3 years ago

14

Each model car in a set costs $4. There are 30 different model cars in the set. How much would it cost to buy all the model cars

in the set?

2 answers:

topjm [15]3 years ago

5 0

4x30=$120 total price for all cars

kakasveta [241]3 years ago

4 0

It would cost a total of $120. dont forget your dollar sign

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3 years ago

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Find the cross product of <img src="https://tex.z-dn.net/?f=-%20%5Cfrac%7B3%7D%7B4%7Dv" id="TexFormula1" title="- \frac{3}{4}v"

dsp73

For any scalars $c_1,c_2$ , we have

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So

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We have

$\mathbf v\times\mathbf w=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\-2&12&-3\\-7&4&-6\end{vmatrix}$
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which makes

$\left(-\dfrac34\mathbf v\right)\times\left(-\dfrac12\mathbf w\right)=\dfrac38\begin{bmatrix}-60\\9\\76\end{bmatrix}=\begin{bmatrix}-\frac{45}2\\\\\frac{27}8\\\\\frac{57}2\end{bmatrix}$

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3 years ago

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Step-by-step explanation:

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2 years ago