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vodka [1.7K]
4 years ago
13

PLEASE HELP SUPER EASY!!!

Mathematics
1 answer:
Effectus [21]4 years ago
7 0

A1. 12 i.e option D

A2. 3n-7 i.e option A

A3. -6n+20 i.e option D

A4. -70 i.e option C

Step-by-step explanation:

aₙ = a₁ + (n - 1) × d  

aₙ = the nᵗʰ term in the sequence

a₁ = the first term in the sequence

d = the common difference between terms

Using the above formula to solve the first part, we have :

  • -8 = a₁ + (2-1) × 5
  • -13 = a₁
  • a₆ = -13 + (6-1) × 5
  • a₆ = 12

For the second part, we have :

  • aₙ = -4 + (n-1)×3
  • aₙ = -4 + 3n -3
  • aₙ = 3n-7

For the third part, we have :

  • a₁=14 ; d=-6
  • aₙ = 14 + (n-1)×(-6)
  • aₙ = -6n + 20

For the fourth part, we have :

  • aₙ = 14 + (15-1)×(-6)
  • aₙ = -70
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Sedaia [141]

Answer:

Step-by-step explanation:

There are 47 acres and the farmer is planting 140,000 per acre.

You got to times 140,000 by 47 but you can multiply 14 by 47 instead and place the zero later.

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Then take 4 times 47 and that is 188

Add 470 and 188 and you get 658

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6 0
3 years ago
Help please !! need it asap
NNADVOKAT [17]
120? I believe sorry if you get it wrong!
6 0
3 years ago
using the pythagorean theorem, find the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse i
8_murik_8 [283]
Phthagorean theorme is
a^2+b^2=c^2
where you have a right triangle and c =hypotonuse( normally the longest side, and opposite of right angle)
a and b are the legs

so we are given
one leg=8
hypotonues=10
subsitute
leg=a or b so just subsitute for one
subsitutt  for b
a^2+8^2=10^2
expand
8^2=64
10^2=100
a^2+64=100
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8 0
3 years ago
Answer fast, please. I need help on it!
Rasek [7]

Answer:

Missing temp: -5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Can someone help me with this
jarptica [38.1K]

The answer is:

x=-8

Because:

If you pick a number(-8) to fill in the equation written below

5x+20+5x=5x-20

After applying the -8 to x you get

-40+20-40=-40-20

When you simply the both sides you get

-60=-60

And that’s right -60 is equal to -60!

5 0
4 years ago
Read 2 more answers
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