2 years ago

Help me with this please

Mathematics

1 answer:

Ket [755]2 years ago

5 0

Answer:

24 cubes

Step-by-step explanation:

24 cubes ::::::::::::/:/:):):):):/:

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SVEN [57.7K]

Our function is:

$f(x)=12^3+ax-20$

Now, if $3x+4$ is a factor of $f(x)$ then $x=\frac{-4}{3}$ must satisfy the equation:

So, $f(\frac{-4}{3} )=0$

Putting $x=\frac{-4}{3}$

We get,

$f(\frac{-4}{3} )=12^3+a(\frac{-4}{3} )-20=0$

$12^3+\frac{-4}{3} a-20=0$

$\frac{-4}{3} a=20-12^3=20-1708$

$a=-1708 \times \frac{-3}{4} =1281$

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2 years ago

If p and q vary inversely and pp is 23 when q is 6, determine q when p is equal to 69.

Lina20 [59]

Answer:

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Step-by-step explanation:

First make the equation with a constant so p=k/q

then substitute q to 6 and p to 23.

Then you have 23=k/6 and to find k multiply both sides to get k=138

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Answer:

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