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olga nikolaevna [1]
3 years ago
11

Pls I need help !!!!!!!!!

Mathematics
2 answers:
Furkat [3]3 years ago
8 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

100° +  b = 180°

Because they make straight line.

Also ;

100° + c = 180°

Thus :

b = c

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

100° + b = 180°

Subtract sides 100°

- 100° + 100° + b = 180° - 100° \\

b = 80°

So ,

b = c = 80°

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

lesya [120]3 years ago
4 0

Answer:

b=100 and c=100

Step-by-step explanation:

Because 100 is across a no value which is also 100 because they are the same and the b and c sides too so they both are 100

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angle abc and angle cbd are supplementary angles the measure of angle cbd is 41 degrees what is the measure of angle abc
Nat2105 [25]

Answer:

139

Step-by-step explanation:

180-41=139

3 0
3 years ago
Using substitution or elimination 3y=-1/2x+2. y=-x+9
I am Lyosha [343]

Answer:

(x, y) = (10, - 1)

Step-by-step explanation:

given the 2 equations

3y = - \frac{1}{2} x + 2 → (1)

y = - x + 9 → (2)

substitute y = - x + 9 into (1)

3(- x + 9) = - \frac{1}{2} x + 2

- 3x + 27 = - \frac{1}{2} x + 2

add \frac{1}{2} x to both sides

- \frac{5}{2} x + 27 = 2 ( subtract 27 from both sides )

- \frac{5}{2} x = - 25

multiply both sides by 2 and divide by - 5

x = 10

solution (10, - 1)


4 0
4 years ago
Solve all of the above
Alisiya [41]

Answer:

no ones gonna solve that for 5 points

Step-by-step explanation:

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6 0
3 years ago
What the answer question
Ilya [14]

Answer:

<h2>Surface area = 373.66</h2><h2>Step-by-step explanation:</h2>

T.S.A = \pi r(r+l)\\l = 10mm\\r = 7mm\\\\T.S.A = 3.14 \times 7(7 + 10)\\= 21.98(17)\\T.S.A = 373.66\\\\T.S.A =  373.66

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If y varies inversely as x and x = 9 when y = 45 , find x when y = 9 .
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