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Svetlanka [38]
3 years ago
9

Write the common difference of an arithmetic sequence if a8 = ‒8 and a10 = ‒12 ? A. ‒4 B. ‒2 C. ‒1 D. 2

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

the common difference between these numbers are 2

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Answer:

3.2 feet


Step-by-step explanation:

The equation  f(x)=-0.3x^{2}+2x  shows the height of water [f(x)] and horizontal distance [x].

<em>Given the </em><em>horizontal distance is 4 feet</em><em>, they want to know the height.</em>


<em>Simply put 4 in x of the equation and solve for f(x). So,</em>

<em>f(x)=-0.3(4)^{2}+2(4)\\f(x)=3.2</em>

So, the height of the water was 3.2 feet above the ground.

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When we choose to do cosine we do adjacent/hypotenuse so it would be...

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3 years ago
Brandon graphed one line in a system of equations. The system has only one solution, (0,3). Which equations could also be part o
AlladinOne [14]

Answer:

y = 3 and y = x + 3

Step-by-step explanation:

The equation y = 3 whose graph is a line parallel to x-axis can be a part of the system.

Consider the equation y = x + 3.

Substitute (0, 3).

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So, (0, 3) lies on y = x + 3 and this can also be a part of the system.

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Mrac [35]

Answer:

  5

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  f(x) = 2x² -3

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  f(-2) = 5

3 0
3 years ago
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