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2 years ago

Please answer ASAP question is in pic^

Mathematics

1 answer:

vlada-n [284]2 years ago

3 0

Answer:

Step-by-step explanation:

Original equation

√x+6-4 = x

Isolate

√x+6 = 4+x

Raise both sides to the second power

(√x+6)2 = (4+x)2

After squaring

x+6 = x2+8x+16

Rearranged equation

x2 + 7x + 10 = 0

This equation has two rational roots:

{x1, x2}={-2, -5}

Original equation, root isolated

√x+6 = 4+x

Plug in -2 for x

√(-2)+6 = 4+(-2)

Simplify

√4 = 2

Solution checks !!

Solution is:

x = -2

Original equation, root isolated

√x+6 = 4+x

Plug in -5 for x

√(-5)+6 = 4+(-5)

Simplify

√1 = -1

Solution does not check

1 ≠ -1

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Answer:

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Step-by-step explanation:

For this case since we know that the interest is compounded continuously, then we can use the following formula:

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We divide both sides by 100000 and we got:

$3 = e^{0.12 t}$

Now we can apply natural logs on both sides;

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And then the value of t would be:

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3 years ago

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kati45 [8]

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