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Jobisdone [24]
3 years ago
14

S=

align="absmiddle" class="latex-formula">
(a+l) solve for a
Mathematics
1 answer:
dmitriy555 [2]3 years ago
8 0

\bf S=\cfrac{n}{2}(a+I)\implies S=\cfrac{n(a+I)}{2}\implies 2S=n(a+I)\implies \stackrel{\textit{distributing}}{2S=na+nI} \\\\\\ 2S-nI=na\implies \cfrac{2S-nI}{n}=a

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You toss a pair of dice. (a determine the number of possible pairs of outcomes. you toss a pair of dice. (a determine the number
Eduardwww [97]
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3 0
2 years ago
A diver is 25 feet below sea level. After he swims up 15 feet toward the surface, what is his elevation?
Nataly [62]
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7 0
3 years ago
Find the solution of the initial value problem<br><br> dy/dx=(-2x+y)^2-7 ,y(0)=0
Leokris [45]

Substitute v(x)=-2x+y(x), so that \dfrac{\mathrm dv}{\mathrm dx}=-2+\dfrac{\mathrm dy}{\mathrm dx}. Then the ODE is equivalent to

\dfrac{\mathrm dv}{\mathrm dx}+2=v^2-7

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\dfrac6{v+3}=1-Ce^{6x}

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y=2x+\dfrac6{1-Ce^{6x}}-3

Given the initial condition y(0)=0, we find

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\boxed{y=2x+\dfrac6{1+e^{6x}}-3}

5 0
3 years ago
Solve for x by factoring. Check your answers. Can you check to see if I'm correct?
Studentka2010 [4]
If you want to check if your answer is correct, expanding it all out will help!

(x-6)(x+2)=0 <-- Use FOIL tactic 

x²+2x-6x-12=0

x²-4x-12=0 

As you can see, this is identical to the initial equation given. The x values would be 6 and -2, as seen from the factored equation. 

Hope I helped :) 
7 0
3 years ago
Am i right? i just want to make sure
marysya [2.9K]

Answer:

yes

Step-by-step explanation:

can i have brainliest

4 0
3 years ago
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