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ioda
2 years ago
9

Zach can run 7 1/2 miles in 1 1/2 hours find the average speed in miles per hour

Mathematics
1 answer:
PtichkaEL [24]2 years ago
8 0

Zach is running 5 miles an hour.

Using division we can do 7 1/2 / 1 1/2 we would get 5.

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Solve the system of linear equations by elimination.<br><br> −2x−5y=9<br> 3x+11y=4
goldenfox [79]

Answer:

x=-17, y=5. (-17, 5).

Step-by-step explanation:

-2x-5y=9

3x+11y=4

---------------

3(-2x-5y)=3(9)

2(3x+11y)=2(4)

---------------------

-6x-15y=27

6x+22y=8

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7y=35

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3x+55=4

3x=4-55

3x=-51

x=-51/3

x=-17

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3 years ago
At what position does the ball have its maximum potential energy
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3 years ago
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Solve the following system of equations. Express your answer as an ordered pair in the format (a,
choli [55]
The second equation is <span>-5-2y=2, then
</span>
<span>-2y=2-(-5),
</span>
-2y=2+5,
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The first equation is 2x+5y=16, subtitude y=-3.5 in this equation, then
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2x=16-(-17.5),
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3 years ago
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Given a quadratic function in vertex form:
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Answer:

See below

Step-by-step explanation:

<u>Part A</u>

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<u>Part B</u>

A vertical compression takes place when a\cdot f(x) given that 0 < |a| < 1

<u>Part C</u>

A vertical stretch is different than a horizontal compression:

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<u>Part D</u>

A reflection across the x-axis means that the output, our y-variable, is the opposite sign. This means that all values of a must be negative such that a\cdot f(x) as mentioned in parts A and B. Also, in part C, since our scale factor is negative, the output is the only one being multiplied by the scale factor.

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