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Svetlanka [38]
3 years ago
7

What is the sum of the measures of the interior angles formed by the boundary of this team pennant?

Mathematics
2 answers:
natulia [17]3 years ago
4 0

Answer:

180 degrees

Step-by-step explanation:

all triangles are 180 degrees

Vikentia [17]3 years ago
3 0

Answer:

should be 180 degrees since all triangles has a sum of interior angles which is 180 degree

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Y=3x+14<br> 2x-3y=-14<br> Substitution method
Montano1993 [528]

Answer:

x = -8

Step-by-step explanation:

y = 3x + 14

2x - 3y = -14

So, what is the substitution? Y of course, this is because y is equal to 3x + 14.

2x - 3 (3x + 14) = -14

Multiply 3 with the numbers in the parentheses.

2x - 9x + 42 = -14

So you maybe be wondering why it is a negative 7 instead of subtracting 9 with 2. Using PEMDAS, we always read from left to right. So it is basically 2 -9 and you get -7.

-7x + 42 = -14

Then subtract 42 from both sides.

-7x + 42 - 42 = -14 - 42

Simplify

-7x = -56

Divide 7 by both sides.

-7x / 7 = -56 / 7

x = -8

And you might ask, why we get x instead afterwards. This is because both -7 and 7 cancel each other out leaving us with x.

4 0
2 years ago
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Plz help and no spam plz. A large university accepts 60% of the students who apply. Of the students the
mihalych1998 [28]
2,600 students actually enroll.
3 0
2 years ago
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The dot plot shows the number of pencils each boy has at his desk in class.
Elanso [62]

Answer:

The median is 2

Step-by-step explanation:

Here, we want to get the median for the number of pencils

Firstly, we have to write out the numbers that form the box plot ; we have this as;

1,1,1,2,2,2,2,3,3,5

the median is sum of the 5th and 6th term divided by 2

The 5th term is 2

The 6th term is 2

So the median is;

(2 + 2)/2

= 4/2 = 2

3 0
3 years ago
Will give brainliest!!!!<br>Explain how solving -7y &gt; 161 is different from solving 7y &gt; -161.
Jlenok [28]

To solve -7y > 161, we divide both sides by -7 and we get y < -23. The inequality sign flipped because we divided both sides by a negative number.

To solve 7y > -161, we divide both sides by 7 and it leads to y > -23. The inequality sign does not flip in this case, because we are not dividing both sides by a negative number.

The similarities is that we end up with -23 on the right side, but the inequality signs are different.

5 0
2 years ago
Which of the following satisfies 3x+1=4 (mod 9) ?
Ymorist [56]

Got it. Hope this will help.

8 0
2 years ago
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