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melisa1 [442]
3 years ago
13

Please help I don't know how to do this ​

Mathematics
1 answer:
Mars2501 [29]3 years ago
5 0

Answer:

  • 18

Step-by-step explanation:

<u>Given AP with:</u>

  • a₁= 28, aₙ = 79, Sₙ = 963

<u>Use the formula:</u>

  • Sₙ = 1/2n(a₁ + aₙ), sum of the first n terms

<u>Substitute given values and solve for n:</u>

  • 963 = 1/2n(28 + 79)
  • 963 = 1/2n(107)
  • 1/2n = 963/107
  • 1/2n = 9
  • n = 9*2
  • n = 18

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Align the horizontal edge of the protractor with the base of the triangle. Place the center point of the protractor on the vertex of the angle. Follow the side of the triangle until it reaches the angle measurement mark. Note the measurement.
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3 years ago
Solve for m. m + 4 3 = 2 what is m<br> HELP MEEEEE!!!!!!!!!!!
Anna71 [15]

<u><em>hi there user! Looks like your looking for help, so Mizuki came here to help you!</em></u>

the answer is:

<em>m is 2/3</em>

The whole work I did:

m + 4 ÷ 3 = 2

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7 0
3 years ago
Read 2 more answers
What is the greatest common factor of 65 and 91
Sedbober [7]
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4 0
3 years ago
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Joe went on holiday to Spain.
Hunter-Best [27]
Answers:

a. £2,090
b. My answer would be less because my total in euros would be divided by a greater number when converting euros to pounds.

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Work for part b:
Example:
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7 0
3 years ago
-5|4y-11|-3=12<br> Please answer with the steps
iren [92.7K]
-5║4y-11║-3=12
-5║4y-11║-3 +3=12+3
- 5║4y-11║=15
-5/5║4y-11║=15/-5
║4y-11║=-3

4y-11=-3 -5║4y-11║-3=12
4y-11+11=-3+11 -5║4(2)-11║-3=12
4y=8 -5║-3║-3=12
4y/4=8/4 -5 (3)-3=12
y=2 -18≠12

4y-11=3 -5║4y-11║-3=12
4y-11+11=3+11 -5║4(7/2)-11║-3=12
4y=14 -5(3)-3=12
4y/4=14/4 -18≠ 12
y=7/2

No solutions









3 0
3 years ago
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