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3 years ago

11

W(x)=3x^2-3x .find w(5+t)

1 answer:

jenyasd209 [6]3 years ago

6 0

Answer:

$60+27t+3t^2$

Step-by-step explanation:

Let's put 5+t wherever we have x in the original: rest is simple algebra.

$w(5+t) = 3(5+t)^2 -3(5+t) = 3(25+10t+t^2)-15-3t =75+30t+3t^2-15-3t =60+27t+3t^2$

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4 years ago

Solve the following system of equations for a and for b:

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Answer:

$a=3\\b=1$

Step-by-step explanation:

$9a+3b=30\\8a+4b=28$

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Now plug this into the first equation.

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Muliply by the reciprocal or inverted fraction next to b.

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Now plug this value into any of the equations to find the value of a.

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4 years ago

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3 years ago

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2 years ago

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Answer:

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Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

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3 years ago