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3 years ago

FInd the general term of this sequence without using recurrency. d = (2,6,14,30...)

Mathematics

2 answers:

Rufina [12.5K]3 years ago

5 0

Y = (2)^(n+1) - 2

is the general term for this.

erastovalidia [21]3 years ago

3 0

Y=2^(n+1)-2

hope helped!

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Subtract 28 1/27 - 2/9=

OLga [1]

Answer:

1759. or 27 58/63

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3 years ago

A) Simplify the expression and explain each step. (2 points) 4(3x+2) -2 = ?

TiliK225 [7]

Answer:

6 (2 x + 1)

Step-by-step explanation:

Simplify the following:

4 (3 x + 2) - 2

Hint: | Distribute 4 over 3 x + 2.

4 (3 x + 2) = 12 x + 8:

12 x + 8 - 2

Hint: | Group like terms in 8 + 12 x - 2.

Grouping like terms, 8 + 12 x - 2 = 12 x + (8 - 2):

12 x + (8 - 2)

Hint: | Subtract 2 from 8.

8 - 2 = 6:

12 x + 6

Hint: | Factor out the greatest common divisor of the coefficients of 12 x + 6.

Factor 6 out of 12 x + 6:

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3 0

3 years ago

the speed of light is 1.86×10^5 miles per second.how many miles will light travel in 4,200,000 seconds?

stiks02 [169]

Answer: $7.812*10^{11}\ miles$

Step-by-step explanation:

Let be "x" the amount of miles light will travel in 4,200,000 seconds.

Rewrite 4,200,000 seconds in Scientific notation. Move the decimal point 6 places to the left. Then:

$4,200,000\ seconds=4.2*10^6\ seconds$

According to the exercise, light travels $1.86*10^5$ miles in 1 second.

Therefore, based on this data, you can set up the following proportion:

$\frac{1.86*10^5\ miles}{1\ second}=\frac{x}{4.2*10^6\ seconds}$

And finally, you must solve for "x" in order to find its value.

(Remember the Product of powers property: $a^m*a^n=a^{mn}$ )

Then:

$(4.2*10^6\ seconds)(\frac{1.86*10^5\ miles}{1\ second})=x\\\\x=7.812*10^{11}\ miles$

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3 years ago

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Answer:

6 miles in one hour

Step-by-step explanation:

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3 years ago

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hoa [83]

The answer to the question would be 6

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3 years ago