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-Dominant- [34]
3 years ago
5

HELP!!! Will mark brainliest!!

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0

Step-by-step explanation:

BDC and ACD are complementary with each other. that means together they cover the full 180 degrees of the half circle that can be drawn on one side of a flat line.

180 = 11x + 25 + 4x + 5 = 15x + 30

150 = 15x

x = 10

BDC = 11x + 25 = 11×10 + 25 = 110 + 25 = 135 degrees

ACD = 4x + 5 = 4×10 + 5 = 40 + 5 = 45 degrees

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Brian was thinking of a number. Brian adds 3 then divides by 2 to get an answer of 2.what was the original answer
Andreas93 [3]

Reverse engineer

2*2-3=1

so its 1

4 0
3 years ago
What is the value of AB?
solniwko [45]

Answer:

I think its 31

Step-by-step explanation:

AC= 43 in the problem it says that point b is 12 stories above point C Which means that if you subtract 43-12 that may be the answer so AB= 31 but thats only my guess you could try the answer but I'm sorry if its wrong ;-;

6 0
4 years ago
HELP ME PLS bro i suck at math;-;
weeeeeb [17]

\huge\underline\color{pink}{Answer ☘}

angle \: sum \: property \: of \: a \: triangle  \\ states \: that \: the   \: sum \: of  \\  all \: the \: three \: angles \: of \: a \: triangle \: is  \\ equal \: to \: 180°

therefore~

63 + (x + 17) + (4x - 5) = 180° \\ 63 + x + 17 + 4x - 5 = 180° \\ 5x  + 75 = 180 \\ 5x = 180°  -  75 \\ 5x = 105° \\ x =  \frac{105}{5}  = 21°

therefore the measure of all the angles are..

∠1 = 63°

∠2 = ( x + 17 ) = ( 21 + 17 ) = 38°

∠3 = ( 4x - 5 ) = ( 84 - 5 ) = 79°

<h3>thus \: the \: measure \: of \: the \: largest \\ angle\: is \: 79°</h3>

hope helpful~

5 0
3 years ago
HELP! solve! <br> 50= -k<br> __<br> 10
andriy [413]

Answer:

so here tje answer is

50 <em>/</em><em> </em><em>1</em><em>0</em><em> </em><em>=</em><em> </em><em>-</em><em>k</em><em> </em>

<em>s</em><em>o</em><em> </em><em>the</em><em> </em><em>v</em><em>a</em><em>l</em><em>u</em><em>e</em><em> </em><em>o</em><em>f</em><em> </em><em>k</em><em> </em><em>=</em><em> </em><em>5</em>

7 0
3 years ago
Sin pi/3 __ __ pi/6 = 1/2(sin pi/2 + sin pi/6)
Alinara [238K]

Notice that

• <em>π</em>/2 = <em>π</em>/3 + <em>π</em>/6

• <em>π</em>/6 = <em>π</em>/3 - <em>π</em>/6

Recall the angle sum identities for sine:

sin(<em>x</em> + <em>y</em>) = sin(<em>x</em>) cos(<em>y</em>) + cos(<em>x</em>) sin(<em>y</em>)

sin(<em>x</em> - <em>y</em>) = sin(<em>x</em>) cos(<em>y</em>) - cos(<em>x</em>) sin(<em>y</em>)

By adding these together, we get

sin(<em>x</em> + <em>y</em>) + sin(<em>x</em> - <em>y</em>) = 2 sin(<em>x</em>) cos(<em>y</em>)

==>   sin(<em>x</em>) cos(<em>y</em>) = 1/2 (sin(<em>x</em> + <em>y</em>) + sin(<em>x</em> - <em>y</em>))

Now take <em>x</em> = <em>π</em>/3 and <em>y</em> = <em>π</em>/6 :

sin(<em>π</em>/3) cos(<em>π</em>/6) = 1/2 (sin(<em>π</em>/2) + sin(<em>π</em>/6))

So the blank should be filled with cos.

8 0
3 years ago
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