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2 years ago

Which property is demonstrated? 16 + 7 + 9 = 7 + 9 + 16

Mathematics

2 answers:

vampirchik [111]2 years ago

8 0

I believe the answer would be B!

Oxana [17]2 years ago

3 0

Changing the order does not change the result of the equation

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Evaluate tan ( cos^-1 ( 1/8 ) ) , giving your answer as an exact value (no decimals)

vekshin1

$\bf cos^{-1}\left( \cfrac{1}{8} \right)=\theta \qquad \qquad cos(\theta )=\cfrac{\stackrel{adjacent}{1}}{\stackrel{hypotenuse}{8}}\impliedby \textit{let's find the \underline{opposite}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{8^2-1^1}=b\implies \pm\sqrt{63}=b ~\hfill tan(\theta )=\cfrac{\stackrel{opposite}{\pm\sqrt{63}}}{\stackrel{adjacent}{1}} \\\\\\ ~\hspace{34em}$

$\bf \stackrel{\textit{keeping in mind that}}{tan\left(cos^{-1}\left( \frac{1}{8} \right) \right)}\implies tan(\theta )$

5 0

2 years ago

2/5y+y-4=31 solve for x

astraxan [27]

12tttttttttttttttttttttttt

5 0

3 years ago

Read 2 more answers

A busy customer service agent handled 20 emails in

nignag [31]

20 mails in 1/4 day (0.25 day)

-> 1 day = 20/0.25 = 80 emails

4 0

2 years ago

What is the measure of x? Please help!

Zepler [3.9K]

Answer:

x =√[y²+(27)²] = √[ z² - 3² +(27)²]

Step-by-step explanation:

step 1) x=√[y²+(27)²]

step 2)

We find y

z²=y²+3² → y² = z² - 3²

step 3) x = √[ z² - 3² +(27)²]

7 0

2 years ago

armani has a butter container that has a diameter of 16 centimeters and a hieght of 12.5 centimeters . what is the volume of the

Masteriza [31]

Answer:

My best solution would be 10053. Although this doesn't seem correct. The reason on why I got this is because of 16 being the diameter. When volume needs a radius and a height. So its this answer or was it a mistake?

Step-by-step explanation:

3 0

3 years ago