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inna [77]
3 years ago
7

What is the fifth term in the geometric sequence described by this explicit formula y=40×(-2)^(n-1)​

Mathematics
1 answer:
cupoosta [38]3 years ago
5 0

Answer:

The fifth term is 620

Step-by-step explanation:

y=40×(-2)^(n-1)​

The 5th terms means n=5

y = 40 * (-2) ^ (5-1)

  = 40 * (-2) ^4

  = 40 * (16)

  = 640

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Answer:

To find the x intercept, let y=0. To find the y-intercept, let x=0. Hence, the x-intercept of the given equation is -2 and the y-intercept is -5/2.

Step-by-step explanation:

Let - 5x - 4y = 10 be the given equation.

Simplify the whole equation by dividing both sides by -1 :

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To get the x-intercept, simply let y=0 :

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  • x = -2               (simplify by dividing both sides of the equation by 5)

To get the y-intercept, simply let x=0 :

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  • 4y = -10            (evaluate)
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  • y = -5/2            (simplify the fraction)
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