4 years ago

What is -3(u+6)-6u ?

Mathematics

2 answers:

Nataliya [291]4 years ago

7 0

It would be

-3u-18-6u

If you simplify this it would be -8u-18

ratelena [41]4 years ago

7 0

9(u+2) would be the answer

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AlexFokin [52]

Answer:

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Step-by-step explanation:

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3 years ago

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Oksana_A [137]

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3 years ago

Determine weather the statement is true or false. Justify your answer

topjm [15]

$\begin{gathered} \cos (-\frac{7\pi}{2})=\cos (\pi+\frac{\pi}{2}) \\ \cos (-\frac{7\pi}{2})=\cos (\frac{3\pi}{2}) \end{gathered}$

As we know:

$\begin{gathered} \cos (x)=0 \\ for \\ x=\pi n-\frac{\pi}{2} \\ n\in Z \end{gathered}$

For:

$\begin{gathered} n=2 \\ x=2\pi-\frac{\pi}{2}=\frac{3\pi}{2} \\ for \\ n=-3 \\ x=-3\pi-\frac{\pi}{2}=-\frac{7\pi}{2} \end{gathered}$

Therefore:

$\begin{gathered} \cos (-\frac{7\pi}{2})=0 \\ and \\ \cos (\frac{3\pi}{2})=0 \\ so\colon \\ 0=0 \\ This_{\text{ }}is_{\text{ }}true \end{gathered}$

Therefore, the statement is true

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1 year ago

CORRECT ANSWERS WILL GET 30 POINTS!!! PLEASE HELP

irakobra [83]

Answer:

sqrt of 1000= 31.6m

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r= 31.6m

Step-by-step explanation:

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4 years ago

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Alla [95]

Answer:

its ur ma and also wheres the picture nobrainer;-;

Step-by-step explanation:

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3 years ago

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