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lana66690 [7]
3 years ago
7

1.2, 3, 7.5, 18.75, ... Which formula can be used to describe the sequence? a.F(x) = 1.2(2.5)^x – 1 b.F(x) = 2.5(1.2)^x – 1 c.F(

x) = 1.2(2.5)^x d.F(x) = 1.2(2.5)^x
Mathematics
2 answers:
Firlakuza [10]3 years ago
7 0

Answer:

  a.  F(x) = 1.2(2.5)^(x – 1)

Step-by-step explanation:

The sequence is geometric with first term 1.2 and common ratio 3/1.2 = 2.5. The explicit formula for such a sequence is ...

  a[n] = a[1]·r^(n-1)

For a[1] = 1.2 and r = 2.5, and using x as the term number, the formula is ...

  F(x) = 1.2·2.5^(x-1) . . . . . matches selection A

Mama L [17]3 years ago
6 0

Answer:

Answer: "f(x) = 1.2(2.5)x-1"

Step-by-step explanation:

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Answer:

Solution given:

y=2x²-5x+6.....[1]

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solving equation 1&2

2x²-5x+6=3x+3

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2x²-8x+3=0

comparing above equation with ax²+bx+c=0 we get

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by using quadratic equation

x=\frac{+8±\sqrt{(-8)²-4*2*3}}{2*2}

x=\frac{+8±2\sqrt{10}}{4}

taking positive

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taking negative

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3 years ago
Liam wants to save $6,265 to purchase a car. if $4,000 is deposited into an account at 7.5% interest, compounded monthly, how ma
timurjin [86]
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3 years ago
a number is multiplied by 12 that tree is added to the result if the number is 51 what is the original number
ivann1987 [24]
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Hope this helped :)
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4 years ago
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Bob drove from home to work at 75 mph.After work the traffic was heavier,and he drove home at 40 mph.His driving time to and fro
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Answer:

Bob drove from home to work at 75 mph. After work the traffic was heavier, and he drove home at 40 mph. His driving time to and from work was 1 hour and 9 minutes. How far does he live from his job?

=================

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Step-by-step explanation:

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