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AleksAgata [21]
2 years ago
13

What is the image of the point (-7,-8)(−7,−8) after a rotation of 270^{\circ}270 ∘ counterclockwise about the origin?

Mathematics
1 answer:
KIM [24]2 years ago
7 0

Answer:

-8,7

i am not sure how to explain it

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Solve for n in the literal equation a(n-2)+5=bn
Helga [31]

Answer:

<u><em>Answer is below</em></u>

Step-by-step explanation:

<em><u>a(n-2)+5=bn</u></em>

<em><u>Add -bn to both sides</u></em>

<em><u>an-2a+5+(-bn)=bn+(-bn)</u></em>

<em><u>an-bn-2a+5=0</u></em>

<em><u>add two a to both sides</u></em>

<em><u>an−bn−2a+5+(2a)=0+(2a)</u></em>

<em><u>an−bn+5=2a</u></em>

<em><u>Add -5 to both sides</u></em>

<em><u>an−bn+5+(-5)=2a+(-5)</u></em>

<em><u>an−bn=2a−5</u></em>

<em><u>Factor out our variable</u></em>

<em><u>n(a−b)=2a−5</u></em>

<em><u>Divide both sides by a-b</u></em>

<em><u>n(a-b)/a-b=2a-5/a-b</u></em>

<em><u>n=2a-5/a-b</u></em>

<em><u>Hope this helps</u></em>

7 0
3 years ago
What is the sum of the arithmetic sequence 8, 15, 22 …, if there are 26 terms?
11111nata11111 [884]
Since the sequence is arithmetic, we have an expression of the form:
 an = a1 + d (n-1)&#10;
 Where,
 a1: first term of the sequence
 d: common difference
 n: number of terms
 We look for the common difference:
 d = 22-15 = 15-8 = 7&#10;&#10;d = 7
 Then, setting values we have:
 a26 = 8 + 7 * (26-1)&#10;&#10;a26 = 183&#10;
 Then, the sum of the terms is:
 Sn = ((a1 + an) / (2)) * n&#10;
 Substituting values:
 Sn = ((8 + 183) / (2)) * 26&#10;&#10;Sn = 2483
 Answer:
 
the sum of the arithmetic sequence 8, 15, 22 is:
 
Sn = 2483
5 0
3 years ago
6 = 2( x + 8) - 5 x​
sladkih [1.3K]

Answer: The answer has 3 forms!

  • Decimal form: 3.3
  • Exact form: 10/3
  • Mixed Number form: 3 1/3

I hope that this helps! :D

8 0
3 years ago
Read 2 more answers
All multiplication facts that us have a product of <br>32
Iteru [2.4K]
2x16
4x8
And of course 1x32
6 0
3 years ago
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55% of what number is 77?
STatiana [176]

Answer:

42.35

Step-by-step explanation:

hope it helps po.

7 0
2 years ago
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