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Ray Of Light [21]
3 years ago
13

Can someone help me wit dis?​

Mathematics
2 answers:
gayaneshka [121]3 years ago
8 0

Answer:

2

Step-by-step explanation:

xz_007 [3.2K]3 years ago
4 0
The answer is 7
3x+10=31
-10 -10
3x=21
/3 /3
x= 7
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10.0328

Step-by-step explanation:

this is the answer

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4 years ago
There are 26.2 miles in a marathon. Write the number of miles using a fraction.
uranmaximum [27]
Proper fraction: 26 1/5
improper fraction: 131/5
7 0
3 years ago
Will someone help with this ! I was allowed a retry for it and I don’t know how to do it
pashok25 [27]

Answer:

\frac{dN}{dt}=k(725-N)\\separating the variables and integrating\\\int \frac{dN}{725-N}=\int kdt+c\\-log (725-N)=kt+c\\log (725-N)=-kt-c\\(725-N)=e^{-kt-c} =e^{-kt} *e^{-c} =Ce^{-kt} \\when t=0,N=400\\725-400=Ce^{0} =C\\C=325\\when t=3,N=650\\725-650=325e^{-3k} \\\frac{75}{325}=(e^{-k})^3\\\\e^{-k} =(\frac{3}{13}) ^{\frac{1}{3} } \\when t=5\\725-N=325(\frac{3}{13}) ^{\frac{5}{3} } =325*\frac{3}{13}*(\frac{3}{13} )^{\frac{2}{3}}\\N=725-75*(\frac{3}{13} )^{\frac{2}{3} }=725-28=697

Step-by-step explanation:

6 0
3 years ago
Write y= - 4x on a graph
ELEN [110]
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3 years ago
Find the area. Around your answer to decimal places​
alexgriva [62]
  • Answer:

<em>86.20 ft²</em>

  • Step-by-step explanation:

<em>Hi there !</em>

<em>A = A₁ + A₂</em>

<em>A₁ =semicircle</em>

<em>A₁ = πr²/2</em>

<em>r = d/2 = 6.4ft/2 = 3.2 ft</em>

<em>A₁ = 3.14×(3.2ft)²/2 ≈ 32.15 ft²</em>

<em />

<em>A₂ =  trapezium</em>

<em>A₂ = (b + B)×h/2</em>

<em>A₂ = (5.1ft + 6.4ft)×9.4ft/2 = 54.05 ft²</em>

<em />

<em>A = 32.15 ft² + 54.05 ft² = 86.20 ft²</em>

<em>Good luck !</em>

7 0
4 years ago
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