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Natali [406]
4 years ago
13

A. 86 B. 111 C. 69 D. 71

Mathematics
2 answers:
dangina [55]4 years ago
8 0
All the angles of a triangle add up to 180 degrees. 

30+39+<4= 180

69+<4= 180

Subtract 69 on both sides. 

<4= 111 degrees

<1 and <4 are supplementary and adjacent. They equal 180 degrees as well.

111+<1= 180

<1= 69 degrees

I hope this helps!
<em>~kaikers</em>
rosijanka [135]3 years ago
6 0
M∠2 = 39, M∠3 = 30

M∠4 = 180 - (M∠2 + M∠3)
M∠4 = 180 - (39 + 30)
M∠4 = 180 - 69
M∠4 = 111

180 - M∠4 = M∠1
180 - 111 = M∠1
M∠1 = 69

M∠1 = 69  

C is your answer


hope this helps
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Further samples,
<span>Rounding off numbers to their nearest mentioned position allows approximation from the number value itself. </span>

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4 0
3 years ago
What is the slope of y= -4
swat32

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Step-by-step explanation:

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4 years ago
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o-na [289]

The inequality is x<25, when Jon cam do less than 25 sit-ups on an exercise ball.

Given that,

Jon can do less than 25 sit-ups on an exercise ball.

We have to find an inequity to illustrate the circumstance.

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

The inequality is

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To learn more about inequality visit: brainly.com/question/28823603

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Given:

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The graph of the function is shown below in the attachment:

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but in case  ( 7 ,  π /3 )  really are Cartesian coordinates (i.e.  ( x , y ) = ( 7 ,  π/3 ) )

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