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pickupchik [31]
3 years ago
7

What is the explicit formula for this sequence? ​

Mathematics
2 answers:
VLD [36.1K]3 years ago
7 0

Answer:

D.

Step-by-step explanation:

we see a1 = 6.

that is the starting value. everything else then (to generate the new sequence elements) is added to this.

so, B and C are out.

and clearly, for every new sequence element we add -3. and we do this for every sequence element except for a1. so we add -3 (n-1) times.

therefore, only D is correct.

anyanavicka [17]3 years ago
3 0

Answer:

The correct answer is D.

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The sum of two numbers is 840. one of the numbers is 357. what is the other number?​
nlexa [21]

Answer:

483

Step-by-step explanation:

840 minus 357 is 483

5 0
3 years ago
A right triangle has a side of length 1 fourth and a hypotenuse of length 1 third. What is the length of the other side?
Marina86 [1]

Answer:

The other side = \frac{1}{12} units

Step-by-step explanation:

A right triangle has a side of length \frac{1}{4} units and;

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According to Pythagorean theorem,

a² + b² = c² , where a and b are the two legs of a triangle and c is the hypotenuse.

Lets say a² = (\frac{1}{4}) ^2   and  c² = ((\frac{1}{3} )^2

b² = c² - a²

b² = \frac{1}{9} - \frac{1}{16} = \frac{1}{144}

So b = \sqrt{1/144} = \frac{1}{12} units.

So the other side = \frac{1}{12} units.

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3 years ago
Given the two points what is the slope of the line?<br> (4,2) (10.4)
zlopas [31]

m = \frac{y2-y1}{x2-x1}\\ m=\frac{4-2}{10-4} \\m = \frac{2}{6} \\\\m=\frac{1}{3}

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Therefore, the equation is y=1/3x+2/3

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Answer:

The answer is 10.5

Step-by-step explanation:

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On a coordinate plane, an exponential function approaches y = 0 in quadrant 1 and increases into quadrant 2. It goes through poi
iVinArrow [24]

Answer:

y=100*0.6^{x}

Step-by-step explanation:

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