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Naya [18.7K]
3 years ago
8

What is vertical angles congruence theorem

Mathematics
2 answers:
Ne4ueva [31]3 years ago
8 0
This mean that vertical angles, angles that are opposite each other and formed by two intersecting straight lines, are congruent.
gizmo_the_mogwai [7]3 years ago
7 0
I don’t really know bro
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Simplify 19 - 1.67 + (2.4)
natali 33 [55]
The answer is 19.73 because 19 minus 1.67 is 17.33 and 17.33 plus 2.4 is 19.73
3 0
3 years ago
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A college student completed some courses worth 3 credits and some
-BARSIC- [3]

Answer:

  • A. 13

Step-by-step explanation:

<u><em>Note:</em></u><em> It seems typo in the question. 5% should read 59.</em>

Let 3 credit courses = x, 4 credit courses = y

<u>As per  given we have following equations:</u>

  • x + y = 18
  • 3x + 4y = 59

<u>Solve the system by elimination. Multiply the first equation by 4 and subtract the second one:</u>

  • 4(x + y) - (3x + 4y) = 4(18) - 59
  • 4x + 4y - 3x - 4y = 72 - 59
  • x = 13

The answer is 13

Correct choice is A

4 0
3 years ago
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At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric
Zanzabum

Answer:

a) (1215, 1297)

b) (1174,  1338)

c) (1133, 1379)      

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1256

Standard Deviation, σ = 41

Empirical Rule:

  • Also known as 68-95-99.7 rule.
  • It states that almost all the data lies within three standard deviation for a normal data.
  • About 68% of data lies within 1 standard deviation of mean.
  • About 95% of data lies within two standard deviation of mean.
  • About 99.7% of data lies within 3 standard deviation of mean.

a) range of years centered about the mean in which about 68% of the data lies

\mu \pm 1(\sigma)\\=1256 \pm 41\\=(1215, 1297)

68% of data will be found between 1215 years and 1297 years.

b) range of years centered about the mean in which about 95% of the data lies

\mu \pm 2(\sigma)\\=1256 \pm 2(41)\\=1256 \pm 82\\=(1174, 1338)

95% of data will be found between 1174 years and 1338 years.

c) range of years centered about the mean in which about all of the data lies

\mu \pm 3(\sigma)\\=1256 \pm 3(41)\\=1256 \pm 123\\=(1133, 1379)

All of data will be found between 1133 years and 1379 years.

3 0
3 years ago
PLEASE PLEASE HELP!!!!
kow [346]

Answer:

4

Step-by-step explanation:

8 0
2 years ago
Every month Jordan puts $14 into her bank account. Her grandma puts additional money into Jordan's bank account every month. Aft
vesna_86 [32]

Answer

D $48.00 u need to multiply 216 and 12 to get 48

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