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Georgia [21]
3 years ago
7

What is the measure of angle

Mathematics
2 answers:
Oksana_A [137]3 years ago
5 0

Answer:

105 degrees

Step-by-step explanation:

since line D is in the middle of 100 and 110, it's 105 degrees.

Hope this helps!(plz mark me brainliest if it does)

vampirchik [111]3 years ago
3 0
105 degrees hope this helps
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Solve for x: 3 − (2x − 5)< −4(x + 2
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Answer:x<−8

Step-by-step explanation:

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\dfrac{3}{5} (30x - 15) = 72

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19 POINTS HELP PLEASE! Complete the table and pattern. Determine the common difference. Write the explicit rule.
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a_1=-20,\ a_3=-15\\\\2d=a_3-a_1\to 2d=-15-(-20)\to2d=-15+20\to2d=5\to d=2.5\\\\a_n=a_1+(n-1)d\to a_n=-20+(n-1)(2.5)=-20+2.5n-2.5=2.5n-22.5\\\\a_2=2.5(2)-22.5=5-22.5=-17.5\\\\a_4=2.5(4)-22.5=10-22.5=-12.5\\\\a_6=2.5(6)-22.5=15-22.5=-7.5

<u>n   |    1     |   2    |   3   |   4   |   5    |   6   |</u>

f(n)|  -20  | -17.5 |  -15  |-12.5|  -10  | -7.5 |

First term: -20     Common Difference: 2.5

Explicit Rule:  a_n=2.5n-22.5       Recursive Rule: a_1=-20,\ a_n=a_{n-1}+2.5

5.

a_1=123,\ a_2=131\\\\d=a_2-a_1\to d=131-123=8\\\\a_n=a_1+(n-1)d\to a_n=123+(n-1)(8)=123+8n-8=8n+115\\\\a_3=8(3)+115=24+115=139\\\\a_5=8(5)+115=40+115=155\\\\a_6=8(6)+115=48+115=163

<u>n   |    1     |   2    |   3   |   4   |   5    |   6   |</u>

f(n)|  123  |  131   | 139 | 147  |  155  | 163 |

First term: 123      Common Difference: 8

Explicit Rule:  a_n=8n+115       Recursive Rule: a_1=20,\ a_n=a_{n-1}+8

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