3 years ago

Can someone please help I’ll Mark brainless .

Mathematics

1 answer:

fgiga [73]3 years ago

5 0

It’s D it equals 10.39

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WINSTONCH [101]

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

f(x) = y= -x²-x+6

When y is max, f'(x) = 0

f'(x) = -2x-1

Equating to 0,

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2 years ago

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We want to solve the simultaneous equations

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$9=-3x+6$

This has now become a linear equation in a single variable $x$ .

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liberstina [14]

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3 years ago