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Bumek [7]
3 years ago
10

Which angles are complementary to

Mathematics
1 answer:
Molodets [167]3 years ago
8 0
Complementary angles add up to 90°

∠BDC + ∠CDA = 90°

Answer: ∠BDC
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HELP ASAP !! easy question and i’ll give brainliest
tia_tia [17]

Answer:

x=38.5

Step-by-step explanation:

\sqrt{23^{2}- 18^{2}}   =\sqrt{205}

cos(x)=\frac{18^{2} +23^{2} -205}{2(18)(23)}

x=38.5(correct to the nearest tenth)

4 0
3 years ago
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Please please help It’s my last assignment
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A. Congruent by SSS

Let me know if is wrong or right, please!
7 0
3 years ago
simon is making wreaths to sell. he has 60 bows,36 silk roses, and 48 silk carnations. he wants to put the same number of items
olchik [2.2K]
48 on each wreath because 60+48+36=144. 144/3=48. therefore simon may put 48 on each wreath

6 0
3 years ago
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a square measuring 9 inches by 9 inches is cut from a corner of a square measuring 15 inches by 15 inches. what is the area of t
AVprozaik [17]
First, find the area of each figure. Then subtract the smaller area from the larger area. Your work should look something like this:

A = l * w
A = 9 * 9
A = 81

This is the area of the smaller square. Now find the area of the larger square. 
A = l * w
A = 15 * 15
A = 225

Now subtract the two areas to find the area of the shape that is left when the smaller square is cut out. 

225 - 81 = 144 

Your final answer should be:
144 in^2
3 0
3 years ago
Solve by using the quadratic formula 3x^2-8x+8=0
german
The answer is either undefined or “x does not exist in the set of all real numbers”.

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4 years ago
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