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valentina_108 [34]
3 years ago
15

What is the measure of angle c?A. 30°B. 70°C. 110°D. 40°​

Mathematics
2 answers:
krek1111 [17]3 years ago
7 0

Answer:

B - 70

Step-by-step explanation:

The angles in a triangle always add up to 180.

70+40=110

180-110=70

raketka [301]3 years ago
4 0

Answer:

70 degrees

Step-by-step explanation:

  • All triangles have 3 angles that add up to 180 degrees
  • How to solve:
  • 40 + 70 + a = 180 // make equation
  • 110 + a = 180 // add like terms
  • <u>- 110       - 110 </u> // subtract 110 on both sides
  •         a = 70
  • <em>70 degrees</em>

Hope this helps :)

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a circle has a circumstance of 20. it has an arc on length 4. what is the central angle of the arc in degrees?
erastovalidia [21]

Answer:

∠72°.

Step-by-step explanation:

If a circle has a circumference of 20 and an arc with a length of 4, we can simply set up a ratio to determine the angle of the arc in degrees:

\frac{4}{20} = \frac{x}{360}

Cross multiply:

1440 = 20x\\

Divide both sides by '20':

x = 72°.

Therefore, the measure of the central angle of the arc is ∠72°.

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What is the yintercept of the line given by the equation below?<br> y= 8x+7
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Question 8<br> Calculate the difference (4x2 + x - 5) – (5x2 - 1).
Rufina [12.5K]

Answer:

x - 6

Step-by-step explanation:

(4x2 + x - 5) - (5x2 - 1)

According to the order of operations, parenthesis come first so we will solve what is in the parenthesis first.

Then we do the multiplication because it comes before addition and subtraction.

4x2 = 8

Now we have 8 + x - 5

Combine like terms and 8-5=3 so we have 3 + x

Now for the second one.

5x2=10

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Subtracting this from the first expression we have:

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7 0
2 years ago
What is the converse of the statement if p,then q
WINSTONCH [101]

Answer:

If q, then p

Step-by-step explanation:

The given conditional statement is "If p, then q"

We want to find the converse of this conditional statement.

The converse is formed by switching the hypothesis (p) and the conclusion (q).

Therefore the converse of the given conditional is "If q, then p"

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A line is parallel to y = 2x – 8 and
Naya [18.7K]

Answer:

y=2x+7

Step-by-step explanation:

When an equation is parallel to another, it shares the same slope.

Our original line is y=2x-8, and it is in slope-intercept form (y=mx+b)

This means that our slope is 2 because m represents the slope.

The slope of our parallel line will then also be 2.

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This is where (x1, y1) is a point the line intersects, and m is the slope.

<u>Plugging in the slope, we'll have:</u>

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We also know it intersects the point (-4, -1)

We can plug this into our equation as well.

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5 0
2 years ago
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