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2 years ago

I want to know what the answer to this question is.

Mathematics

2 answers:

maria [59]2 years ago

3 0

Answer:

I'll say 43 degrees, if you were to take out the D line, then it would've been a 180 degree, which you subtract 137 degrees from to get 43 degrees.

Anna71 [15]2 years ago

3 0

I think the answer is B 43

You would have to subtract 180 by 137 because the angles are supplementary to each other.

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dedylja [7]

46 -2c

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2 years ago

Student Produced Response - Calculator

faltersainse [42]

Answer:

$\dfrac{a}{b}=0.75$ .

Step-by-step explanation:

If two equations $a_1x+b_1y+c_1=0$ and $a_2x+b_2y+c_2=0$ has infinitely many solutions, then

$\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}$

The given equations are

$ax+by=10$

$3x+4y=20$

It is given that the above system of equations has infinitely many solutions. So,

$\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{10}{20}$

$\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{1}{2}$

Now,

$\dfrac{a}{3}=\dfrac{1}{2}$ and $\dfrac{b}{4}=\dfrac{1}{2}$

$a=\dfrac{3}{2}$ and $b=\dfrac{4}{2}$

$a=1.5$ and $b=2$

So, a=1.5 and b=2.

Now,

$\dfrac{a}{b}=\dfrac{1.5}{2}=0.75$

Therefore, $\dfrac{a}{b}=0.75$ .

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Answer:

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Step-by-step explanation:

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