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7nadin3 [17]
2 years ago
12

Can somebody check to see if these are right? THANK YOU!!

Mathematics
2 answers:
PIT_PIT [208]2 years ago
8 0
The first one should be x - y <= 25. Since there are 25 OR fewer available, depending on who is out sick or on vacation.
Fed [463]2 years ago
3 0
Those answers are correct cause i did that before.

Hope this Helped!

;D
Brainliest??
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Find the solution of the system of equations.
AnnyKZ [126]

Answer:

x=-2 and y=-3

Step-by-step explanation:

2x+4y=-16

-2(-2x+2y=-2)

2x+4y=-16

4x-4y=4

6x=-12

x=-2

2x+4y=-16

2(-2)+4y=-16

-4+4y=-16

+4        +4

4y=-12

y=-3

6 0
2 years ago
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Find the diameter of a circle with an area of 6767 square centimeters.
scZoUnD [109]
  • Area=6767cm²

Diameter be d

Radius be r

  • πr²=6767
  • r²=6767/π
  • r²=2155
  • r=46.4cm

Diameter=2r=46.4(2)=92.8cm

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*pls help* <br> solve 7,8,9, and 10 for brainliest
ivanzaharov [21]

Answer:

#8 : x=15−y

#9: \frac{c}{b} -\frac{ax}{b}

#10: y=2A−x

#7: T=\frac{P}{IR}

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2 years ago
Laura determined the difference between 8 and –2 using the additive inverse. Her steps are shown below.
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Answer: The 8 should have remained positive.

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2 years ago
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The curves y = √x and y=(2-x) and the Cartesian axes form two distinct regions in the first quadrant. Find the volumes of rotati
makkiz [27]

Answer:

Step-by-step explanation:

If you graph there would be two different regions. The first one would be

y = \sqrt{x} \,\,\,\,, 0\leq x \leq 1 \\

And the second one would be

y = 2-x \,\,\,\,\,,  1 \leq x \leq 2.

If you rotate the first region around the "y" axis you get that

{\displaystyle A_1 = 2\pi \int\limits_{0}^{1} x\sqrt{x} dx = \frac{4\pi}{5} = 2.51 }

And if you rotate the second region around the "y" axis you get that

{\displaystyle A_2 = 2\pi \int\limits_{1}^{2} x(2-x) dx = \frac{4\pi}{3} = 4.188 }

And the sum would be  2.51+4.188 = 6.698

If you revolve just the outer curve you get

If you rotate the first  region around the x axis you get that

{\displaystyle A_1 =\pi \int\limits_{0}^{1} ( \sqrt{x})^2 dx = \frac{\pi}{2} = 1.5708 }

And if you rotate the second region around the x axis you get that

{\displaystyle A_2 = \pi \int\limits_{1}^{2} (2-x)^2 dx = \frac{\pi}{3} = 1.0472 }

And the sum would be 1.5708+1.0472 = 2.618

7 0
3 years ago
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