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3 years ago

4(x-2) =2(x+5) ----------------------------- 6 6

Mathematics

1 answer:

KatRina [158]3 years ago

6 0

Answer:

15 us the answer I knowwww

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Six hundred seven and four hundred nine one-thousandths.

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2 years ago

Find the function. f(-7) if f(x) = 8x+15<br>f(-7) = <br>-4?<br>7<br>0

docker41 [41]

Answer:

-41.

Step-by-step explanation:

Replace the x by -7:

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2 years ago

What number is represented by −3x²+√2x+1/2 when x=√2?

Mila [183]

Answer:

at x = $\sqrt{2}$ , $-3x^{2} + \sqrt{2}x + \frac{1}{2}$ = -3.5

Step-by-step explanation:

The given equation is $-3x^{2} + \sqrt{2}x + \frac{1}{2}$

Now, substitute the value of x = $\sqrt{2}$ in the above equation.

The given equation simplifies to,

$-3(\sqrt{2})^{2} + (\sqrt{2})(\sqrt{2}) + \frac{1}{2}$

now, $\sqrt{2} . \sqrt{2} = 2, \textrm{and} (\sqrt{2} )^{2} = 2$

So, the equation become

-3(2) + 2 + (1/2) = $-6 + 2 + \frac{1}{2} = -4 + \frac{1}{2} = \frac{-8 + 1}{2} = \frac{-7}{2}$

= -3.5

So, at x = $\sqrt{2}$ , $-3x^{2} + \sqrt{2}x + \frac{1}{2}$ = -3.5

6 0

2 years ago