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-BARSIC- [3]
3 years ago
13

Plz help me figure this out

Mathematics
1 answer:
Likurg_2 [28]3 years ago
6 0
B at least 70% i had the same question before and that was correct

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Does the equation open up or down?<br> Y = -3x2 +7x - 2
Helga [31]

Answer:

Opens downward, like a frowning face

Step-by-step explanation:

7 0
3 years ago
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Identify the slope and y-intercept:<br> y = -1/5x+12<br> Slope:<br><br> y-intercept:
ipn [44]

Answer:

Slope: -1/5  y-intercept: 12

Step-by-step explanation:

y = -1/5x + 12

The equation given is the slope-intercept form, y= mx + b

In this equation, the m, or number in front of the x, is the slope of the line.

The b in the equation represents the y-intercept.

Therefore, according to the given equation, the slope is -1/5 and the y-intercept is 12.

8 0
3 years ago
Tank 1 initially contains 50 gals of water with 10 oz of salt in it, while tank 2 initially contains 20 gals of water with 15 oz
Naddik [55]
\dfrac{\mathrm dx_1}{\mathrm dt}=\dfrac{2\text{ oz}}{1\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}
\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_2(t)\text{ oz}}{20\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}

\implies\begin{cases}\dfrac{\mathrm dx_1}{\mathrm dt}=10-\dfrac1{10}x_1\\\\\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac1{10}x_1-\dfrac14x_2\\\\x_1(0)=10\\\\x_2(0)=15\end{cases}
6 0
3 years ago
Simplify each expression completely. please show work. thanks!
yulyashka [42]
I know the answers but I hate simplifying
40) 9y-12
42) -3x+3y-5
8 0
3 years ago
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Convert 60 miles per hour into meters per second
Svetllana [295]
1,609.35 meters are in a mile.
3,600 seconds are in an hour.

1,609.35meters x 60miles = 96,561 meters per hour
96,561meters per hour / 3,600seconds = 26.82 meters per second
3 0
3 years ago
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