Answer and maybe an explanation.Thanks in advance.

Mathematics

1 answer:

qaws [65]3 years ago

3 0

Inverses

solve for x
replace x with f inverse
replace y with x

so
first minus 2 both sides
y-2=√(2x-3)
square both sides
y^2-4y+4=2x-3
add 3 to both sides
y^2-4y+7=2x
divide both sides y 2
(y^2-4y+7)/2=x

x turns to f inverse and y turns to x

f(x)⁻¹= $\frac{x^{2}-4x+7}{2}$

looks like they didn't want to expand the binomial

y= $\frac{(x-2)^{2}}+3}{2}$
answer si A

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Dan saved twice as much as Brett. Maria saved $60 more than Brett. If they saved $600 altogether, how much did Maria save?

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What is the derivative of g(x)=e^(x^2+2x)+3x

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Ok first we can split it in two : $e^{x^2+2x}$ and $3x$ .

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