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dangina [55]
3 years ago
13

X=y-7. X+8y=2 Hellplpp helllpppp! Plz!

Mathematics
1 answer:
Luden [163]3 years ago
6 0
X= -5/7
y= 44/7

Hope this helps!!

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Convert to rectangular coordinates. use exact values. 7 sqrt 2, 135 degrees
Free_Kalibri [48]
Tan 135 = -1

so rectangular coordinates are (-7 sqrt2, 7 sqrt2)
7 0
3 years ago
Can you help me get have a test tomorrow
Jlenok [28]

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2 years ago
Write sixty-five hundredths as a decimal form.
Marat540 [252]

Answer: 0.65

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The volume of water remaining in a hot tub when it is being drained satisfies the differential equation dV/dt = −3(V)^1/2 , wher
dimaraw [331]
The given function is a variable separable differential equation. Combine like terms, integrate, apply the appropriate limits, and express V in terms of t. This is done as follows:

dV/dt = -3(V)^1/2
dV/-3V^1/2 = dt
\int\limits^V_m { \frac{1}{03 \sqrt{V} } } \, dV = \int\limits^t_0 {} \, dt

m here is the initial V which is 225. Then after integrating,

-2/3 (√V - √225) = t
-2/3 (√V - 15) = t

V= \sqrt{ \frac{-3}{2}t+15 }

That is the expression for V at time t. I hope I was able to help. Have a good day.
5 0
3 years ago
If a stadium has 15,000 seats sold at $10.00, $12.50, and $15.00 equally distributed in three sections, how much can be made if
ELEN [110]
If it is equally distrubuted in 3 sections then we would divide 15,000 by 3. Now we take one section which would cost $10.00 and multiply it by the 5,000 since we divided. We would do the same with all three and then add it together.

$10 * 5,000 = $50,000 section one can sell this much
$12.50 * 5,000 = $62,500 section two can sell this much
$15 * 5,000 = $75,000 section three can sell this much

If all the seats are sold than 50k + 62.5k + 75k = $187,500 can be made
3 0
3 years ago
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