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igor_vitrenko [27]
3 years ago
11

Determine if the sequence is algebraic or geometric, and find the common difference or ratio.

Mathematics
2 answers:
Trava [24]3 years ago
5 0

Answer:

Correct answer is A.  Algebraic, common difference = −10

Alekssandra [29.7K]3 years ago
3 0

Answer:

  A.  Algebraic, common difference = −10

Step-by-step explanation:

The difference between the first two terms is -10, as it is between the next two terms. The ratio of the first two terms is -1; of the next pair: -15/-5 = 3. There is a common difference, but not a common ratio.

The sequence is algebraic with a common difference of -10.

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Width is 25 units because 50/2 = 25
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3 years ago
Simplify <br> 3x+6y+5y-2y<br><br> please explain i need help :(
marin [14]
3x+6y+5y-2y

Combine like terms

3x+9y

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3 years ago
Nahee is running around the circular track with equation x2+y2=10000 at a speed of 2.9 meters per second. She starts at the poin
Nana76 [90]

Answer:

The coordinates are (58.1, - 81.4).

Step-by-step explanation:

The distance traveled by Nahee after 13 minutes at the rate of 2.9 m/sec along the arc of the circle with equation x² + y² = 100², will be (13 × 60 × 2.9) = 2262 m

Now, the perimeter of the circle is 2πr = 2 \times \frac{22}{7}\times 100 = 628.57 m

Therefore, after traveling three full circles and a half-circle the remaining arc length will be [2262 - (628.57 × 3) - (628.57 ÷ 2)] = 62 m

Therefore, Nahee will finish his run in the fourth quadrant.

Now, the angle made by the arc length of  62 m at the center will be = \frac{360}{628.57}\times 62 = 35.512^{\circ}

So, the angle made with positive x-axis will be (90° - 35.521°) = 54.488°

Now, the coordinates of the finishing point are (x,-y) = (rCos 54.488°, - rSin 54.488°) = (58.1, - 81.4) (Answer)

3 0
3 years ago
The number of employees at a company is decreasing by 9.5% yearly. Currently there are 12,640 employees working at the company.
pychu [463]

Answer:

12546

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Answer:

15

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3 years ago
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