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andreev551 [17]

3 years ago

11

Help Which one is for 1,2 ,and 3

1 answer:

Naily [24]3 years ago

3 0

X-5, y+9

because -5 then positive 5 up

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Which of the following is the solution to 17 - 2x = -11?

Lostsunrise [7]

-28=-2x
Divide by negative 2
Your answer: x=14

4 0

3 years ago

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A jet travels 2301 miles against the wind in 3 hours and 2811 miles with the wind in the same amount of time. What is the rate o

astraxan [27]

Answer:

The rate of the jet in still air is 852 miles per hour. The rate of the wind is 85 miles per hour.

Step-by-step explanation:

Let suppose that jet travels uniformly, that is, at constant speed, the expressions for its travels against the wind and with the wind are, respectively:

Against the wind

$v -u = \frac{\Delta x_{1}}{\Delta t_{1}}$

With the wind

$v +u = \frac{\Delta x_{2}}{\Delta t_{2}}$

Where:

$v$ - Speed of the jet in still air, measured in miles per hour.

$u$ - Speed of wind, measured in miles per hour.

$\Delta x_{1}$ , $\Delta x_{2}$ - Distances travelled by jet against the wind and with the wind, measured in miles.

$\Delta t_{1}$ , $\Delta t_{2}$ - Times against the wind and with the wind, measured in hours.

By adding both expressions:

$2\cdot v = \frac{\Delta x_{1}}{\Delta t_{1}}+\frac{\Delta x_{2}}{\Delta t_{2}}$

$v = \frac{1}{2}\cdot \left(\frac{\Delta x_{1}}{\Delta t_{1}} + \frac{\Delta x_{2}}{\Delta t_{2}} \right)$

Given that $\Delta x_{1} = 2301\,mi$ , $\Delta t_{1} = 3\,h$ , $\Delta x_{2} = 2811\,mi$ and $\Delta t_{2} = 3\,h$ , the speed of the jet is:

$v = \frac{1}{2}\cdot \left(\frac{2301\,mi}{3\,h}+\frac{2811\,mi}{3\,h} \right)$

$v = 852\,\frac{mi}{h}$

The rate of the jet in still air is 852 miles per hour.

Lastly, the rate of the wind is:

$u = \frac{\Delta x_{2}}{\Delta t_{2}}-v$

$u = \frac{2811\,mi}{3\,h}-852\,\frac{mi}{h}$

$u = 85\,\frac{mi}{h}$

The rate of the wind is 85 miles per hour.

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3 years ago

Jordan is playing a video game with zombies and is collecting data on scores for each round played. Jordan creates a scatter plo

Andrews [41]

Answer:

$z=ar^{2} +br+c$

Step-by-step explanation:

Since Z is a quadratic function of r, then it has the general equation of a quadratic equation :

Where a, b, and c are constants

Z represent the score and r represent the rounds played.

Hope this has helped?

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4 years ago

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PLEEEEEEEEEASE ANSWER THIS QUESTION!! Simplify the expression<br>3(5x)

Tomtit [17]

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Write in slope-intercept form an equation of the line that passes through the points (−4, 2) and (6,−3).

asambeis [7]

Answer:

24,3

Step-by-step explanation:

4x6 3x2

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3 years ago