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sergejj [24]
3 years ago
11

What is the value of -5 and what is the value of 5

Mathematics
1 answer:
scoray [572]3 years ago
6 0

-5 is a negative number; if you plot it on the number line, it'll be 5 units to the left of the origin.  +5 is a positive number; .... it'll be 5 units to the right of the origin.

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Simplify 6f+5g-3f+3g
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a portion of 7200 is invested at 5 1/2 percent interest, and the rest is invested at 5 percent interest. if the yearly income fr
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Answer:

A 5.5% = 5400 B 5% = 1800

Step-by-step explanation:

A + B = 7200

A * 0.055 + B * 0.05 = $387

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396 - 0.055B + 0.05B = 387

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A bacterial culture grows exponentially according to the function n(t)=n(e^n), where n(t) is the quantity after t hours and n is
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Answer:

n(t=2) = 2 e^{1.386294361(2)}=32 grams

So then after 2 hours we will have 32 grams.

Step-by-step explanation:

For this case we have the followin exponential model:

n(t) = n e^{rt}

n(t) is the quantity after t hours, n is the original quantityand t represent the hours and r the rate constant.

For this case we know that n(0) = 2 grams and n(3) = 128 grams and we want to find n(2)=?

From the initial condition we know that n = 2, and we have the model like this:

n(t) = 2 e^{rt}

Now if we apply the other conditionn(3) = 128 we got:

128 = 2 e^{3r}

If we divide both sides by 2 we got:

64= e^{3r}

If we apply natural log for both sides we got:

ln(64) = 3r

r = \frac{ln(64)}{3}=1.386294361

And our model is this one:

n(t) = 2 e^{1.386294361t}

And if we replace t = 2 hours we got:

n(t=2) = 2 e^{1.386294361(2)}=32 grams

So then after 2 hours we will have 32 grams.

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Answer:

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