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4 years ago

Which group of angles measures 43 degrees

Mathematics

1 answer:

Shtirlitz [24]4 years ago

7 0

Acute Angles measure below 90°
So this angle would be an acute angle

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Evaluate 47-5 times 3

Vlad1618 [11]

Using order of operations you would multiply first giving you 15. So 47-15=32.

4 0

3 years ago

2root3 sin^<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ac9eec">[email protected]</a> - <a href

Phantasy [73]

Answer:

Step-by-step explanation:

$2\sqrt{3} sin^{2} \alpha -cos\alpha =0\\2\sqrt{3} (1-cos ^2 \alpha )-cos \alpha =0\\2\sqrt{3} -2\sqrt{3} cos^2 \alpha -cos \alpha =0\\2\sqrt{3} cos^2 \alpha +cos \alpha -2\sqrt{3} =0\\cos \alpha =\frac{-1 \pm\sqrt{1^2-4*2\sqrt{3}*(-2\sqrt{3}) } }{2*2\sqrt{3} } \\=\frac{-1 \pm\sqrt{1+48} }{4\sqrt{3} } \\=\frac{-1\pm7}{4\sqrt{3} } \\either~cos \alpha =\frac{6}{4\sqrt{3} }=\frac{\sqrt{3} }{2} \\=cos \frac{\pi }{6} ,cos(2\pi -\frac{\pi }{6} )\\=cos \frac{\pi}{6} ,cos \frac{11\pi }{6}$

$\alpha =2 n\pi+ \frac{\pi }{6} ,2n\pi +\frac{11\pi }{6} (general~solution)$

$or~cos\alpha =-\frac{7}{4\sqrt{3} } \\ \alpha =cos^{-1}( \frac{-7}{4\sqrt{3} } )$

5 0

4 years ago

Please solve :)))))))

ad-work [718]

Answer:

x=1

Step-by-step explanation:

We can solve this equation using a mix of simplifying and using arithmetic on both sides:

6-4x=7x-9x+4

6-4x=-2x+4

2-4x=-2x

2=2x

1=x

x=1

8 0

3 years ago

What is -(6)^-1 ???

Taya2010 [7]

Answer: " - $\frac{1}{6}$ . "

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Step-by-step explanation:

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-(6)⁻¹ = - (6⁻¹ ) = - $\frac{1}{6^1}$ ;

= " - $\frac{1}{6}$ " .

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Hope this helps!

Best wishes to you in your academic pursuits

— and within the "Brainly" community!

____________________________________________

7 0

3 years ago

Read 2 more answers

A smaller square is located inside a larger square. the length of the smaller square is 7 cm, and the length of the square is 12

patriot [66]

Let S=larger square side and s=smaller square side. The area between the larger and smaller is simple the larger area minus the smaller area. The area of any square being s^2. So our remaining area is:

A=S^2-s^2

A=144-49=95 cm^2

7 0

3 years ago