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Triss [41]
3 years ago
10

Amy is using a drawing program to complete a construction with which she is almost finished. Which construction is she completin

g?
A. An equilateral triangle inscribed in a circle
B. A square inscribed in a circle
C. A regular pentagon inscribed in a circle
D. A regular hexagon inscribed in a circle

Mathematics
1 answer:
Neko [114]3 years ago
3 0
D beacuse a hexangon is like the shape of the circle


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A/20 + 14/15 = 9/15 <br><br> Can i get some help?
KiRa [710]
Method 1:

\dfrac{a}{20}+\dfrac{14}{15}=\dfrac{9}{15}\ \ \ \ |multiply\ both\ sides\ by\ 60\\\\60\cdot\dfrac{a}{20}+60\cdot\dfrac{14}{15}=60\cdot\dfrac{9}{15}\\\\3a+4\cdot14=4\cdot9\\\\3a+56=36\ \ \ \ |subtract\ 56\ from\ both\ sides\\\\3a=-20\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{a=-\frac{20}{3}\to a=-6\frac{2}{3}}

Method 2.

\dfrac{a}{20}+\dfrac{14}{15}=\dfrac{9}{15}\ \ \ \ |subtract\ \dfrac{14}{15}\ form\ both\ sides\\\\\dfrac{a}{20}=-\dfrac{5}{15}\\\\\dfrac{a}{20}=-\dfrac{1}{3}\ \ \ \ |multiply\ both\ sides\ by\ 20\\\\\boxed{a=-\dfrac{20}{3}\to a=-6\frac{2}{3}}
3 0
4 years ago
If segment FD = 20 units and segment DE = 52 units, what is the value of b? Round the solution to the nearest hundredth.
Readme [11.4K]

Answer:

b = 22.62^{o}

Step-by-step explanation:

Since the triangle is a right angled triangle, the appropriate trigonometric function can be applied to determine the value of b.

Thus, to determine the value of b;

Sin θ = \frac{opposite}{hypotenuse}

Sin b =  \frac{20}{52}

         =  \frac{20}{52}

          = 0.38462

⇒ b = Sin^{-1} 0.38462

  = 22.6202

b = 22.62^{o}

The measure of angle E (= b) is 22.62^{o}.

         =

7 0
3 years ago
In a certain​ chemical, the ratio of zinc to copper is 3 to 14. A jar of the chemical contains 658 grams of copper. How many gra
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Answer:

hehehehehheh

Step-by-step explanation:

Shiny roachnoises :P

5 0
3 years ago
6 hours and 42 minutes equals how many minutes
Tresset [83]

Answer:

402

Step-by-step explanation:

every hour is 60 minutes so multiply 6 by 60. 360 minutes for 6 hours. Then add 42 to it. 402

-plz mark brainliest-

5 0
4 years ago
Read 2 more answers
Multiply: (5t – 4)(4t + 5)
AnnZ [28]
<span>The answer is this 20t2 + 9t – 20. Go look up a video for foiling </span>
5 0
3 years ago
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