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Thepotemich [5.8K]
2 years ago
14

“If the alternate exterior angles are congruent, then the lines are parallel.”

Mathematics
1 answer:
sergeinik [125]2 years ago
5 0
The correct answer is <span>If the alternate exterior angles are not congruent, then the lines are not parallel.

The inverse one is the one with the nots in it. Although the fourth version also has nots, it is actually a contrapositive because of the virtue of its form. </span>
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Brainliest if answered correctly.
allochka39001 [22]

Answer:

a=35°, b=55°, c=110°

Step-by-step explanation:

reason for a and b is that when 2 lines intersect, the opposite angles are equal.

well for c angles on a straight line add upto 180.

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2 years ago
PLEASE HELP
Semenov [28]

Answer:

\sum\limits^7_{n=1}(4n - 3)

Step-by-step explanation:

Given

1 + 5 + 9 + .....

Required

Write a definition

First, we derive a formula for the series using:

T_n = a + (n - 1)d

From the attached data;

a = 1

d = 5 - 1 = 4

So:

T_n = a + (n - 1)d

T_n = 1 + (n - 1) * 4

T_n = 1 + 4n - 4

Collect like terms

T_n = 4n - 4+1

T_n = 4n -3

So, the definition for first 7 terms is:

\sum\limits^7_{n=1}(4n - 3)

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2 years ago
PLEASE HELP ME I DO'T UNDERSTAND DIS MATh
sladkih [1.3K]

Answer:

60%

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A percent is technically just a fraction over 100.

To get that here, we simply divide the part (which is 1560 people) by the whole (which is 2600 people) and then multiply that by 100:

(1560 / 2600) * 100 = 0.6 * 100 = 60/100

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2 years ago
If Sarah drink 2 cups of water and then drink one more how many cups of water did Sarah drink?
gayaneshka [121]

Answer:

A

Step-by-step explanation:

I think its self explanatory?

2+1=3 cups of water?

5 0
2 years ago
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12 hours (5880 divided by 490)
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3 years ago
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