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2 years ago

10

Whats 34-2 . JK DONT ANSWER THAT my question is .........................

1 answer:

Scorpion4ik [409]2 years ago

3 0

You are strange if u like blondies. PERIOD!

Step-by-step explanation:

:)

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3 years ago

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What is the value of x? 36 72 108 144

Tom [10]

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3 years ago

Fred has a bag containing 12 black marbles, 10 red marbles, and 15 white marbles .

-Dominant- [34]

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3 years ago

The ratio of boys to girls in the Science Club is 3:5. If there are 60 girls, how many boys are there?

maks197457 [2]

25 boys.

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3 years ago

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Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 12x^3-30x=5-2x^2

nata0808 [166]

So, since we have a cubic equation with 4 terms, the first thing we should try is factoring by grouping, so:

$12x^3+2x^2-30x+5 =0 \implies \\ 2x^2(6x+1)-5(6x+1)=0 \implies \\ (2x^2-5)(6x+1) = 0$

Now that we've factored our equation, we can use ZPP and break it up:

$2x^2-5 = 0 \implies \\ 2x^2=5 \implies\\ x^2=\frac{5}{2} \implies\\ x=\pm\frac{\sqrt{5}}{\sqrt{2}}=\pm\frac{\sqrt{10}}{2} \\ \\ 6x+1 =0 \implies \\ 6x=-1 \implies\\ x=\frac{-1}{6}$

So, our solutions are:

$x\in \{\frac{\sqrt{10}}{2},-\frac{\sqrt{10}}{2},-\frac{1}{6}\}$

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3 years ago