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miskamm [114]
2 years ago
12

The general equation for the geometric sequence -1, -2, -4, ... is a n = -1 · 2 n - 1 .

Mathematics
1 answer:
katrin2010 [14]2 years ago
4 0

\text{First term,}~ a = -1\\\\\text{Common ratio,}~ r = 2\\\\\text{Nth term} = ar^{n-1}=-1\cdot 2^{n-1}\\

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3x + 3 – 2+2 = x + 5
Feliz [49]

Answer:

x = 1

Step-by-step explanation:

First simplify and get 3x + 3 = x + 5

Then subtract x from both sides and get 2x + 3 = 5

Then subtract 3 from both sides and get 2x = 2

Divide both sides by 2 and get x = 1

8 0
3 years ago
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Simplify<br> 6x^3y^9/36x^3y^-2
AnnZ [28]
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5 0
3 years ago
How far, D, does a vehicle travel if it is moving at a rate, r, of 60 km/h and it travels for t =150 minutes? Use the formula D=
strojnjashka [21]

The distance of a vehicle travel is 150 km, at a moving rate of 60 km/h for 150 minutes.

Step-by-step explanation:

            The given is,

                   Moving rate, r = 60 km/h

                   Time, t = 150 minutes

Step:1

            We need to find the distance traveled by the vehicle,

            From given the formula is

                        D = rt

            Where,

                D = Distance in Km

                 r = Moving rate in Km/h

                 t = Time in hours

Step:2

         We need to convert the time minutes to hours

                   t = \frac{150}{60} hours

                   t = 2.5 hours

Step:3

        Distance traveled by the vehicle is,

                D = 60 × 2.5

                    = 150

                D = 150 Km

Result:

      The distance traveled by the vehicle is 150 Km at a moving rate of 60 km/h for 150 minutes.

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Since there are 8 possibilities, but only one of them results in 3 tails tosses, the answer would be 1/8. 1 chance out of 8 possibilities.
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