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allochka39001 [22]
3 years ago
13

Find the 14th term of the arithmetic sequence - 4x - 1, - 9x - 6 , -14x-11

Mathematics
1 answer:
Yanka [14]3 years ago
3 0

Answer:

-69x-66

Step-by-step explanation:

1) given: a₁=-4x-1; a₂=-9x-6; a₃=-14x-11. Find: a₁₄-?

2) a₁₄=a₁+13d, where d - the difference between neighbor-terms;

3) d=a₂-a₁; ⇔ d= -9x-6+4x+1= -5x-5;

4) a₁₄= -4x-1+13*(-5x-5)= -69x-66.

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Vlad1618 [11]

The answer should be 8+[(2^2)+3]-5

Hope this helps!


3 0
3 years ago
I had trouble plotting the midpoint lol but can someone plz help me :c​
kodGreya [7K]

midpoint is (-1 and -1.5)

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3 years ago
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3 years ago
Find the area of the figure.<br> A-56cm^2<br> B-88cm^2<br> C-112cm^2<br> D-384cm^2
julia-pushkina [17]
  • firstly find the area of the square which is sidexside=8x8=64cm^2
  • then find the area of the triangle which is 1/2xbasexhight=1/2x8x6=24cm^2
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4 0
3 years ago
If y varies directly as x, and y = 12 when x = 72, then what is the value of x when y = 3 ?
qwelly [4]

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x = 18

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