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3 years ago

What is 2,220.000 and 0.000732 in scientific notation

Mathematics

2 answers:

DIA [1.3K]3 years ago

6 0

The answer to your question is

2,220.000= 2.22 x10³

0.000732 = 7.32 x10

Hope this helped!

aksik [14]3 years ago

4 0

2,220.000 = 2.22 x10³
0.000732 = 7.32 x10 $^{-4}$

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zmey [24]

Answer:

$a=3$ and $b=5$ .

Step-by-step explanation:

So I believe the problem is this:

$\frac{2(4x+3)}{x-3}(x+7)}=\frac{a}{x-3}+\frac{b}{x+7}$

where we are asked to find values for $a$ and $b$ such that the equation holds for any $x$ in the equation's domain.

So I'm actually going to get rid of any domain restrictions by multiplying both sides by (x-3)(x+7).

In other words this will clear the fractions.

$\frac{2(4x+3)}{x-3}(x+7)}\cdot(x-3)(x+7)=\frac{a}{x-3}\cdot(x-3)(x+7)+\frac{b}{x+7}(x-3)(x+7)$

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As you can see there was some cancellation.

I'm going to plug in -7 for x because x+7 becomes 0 then.

$2(4\cdot -7+3)=a(-7+7)+b(-7-3)$

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$-50=-10b$

Divide both sides by -10:

$\frac{-50}{-10}=b$

$5=b$

Now we have:

$2(4x+3)=a(x+7)+b(x-3)$ with $b=5$

I notice that x-3 is 0 when x=3. So I'm going to replace x with 3.

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$2(12+3)=a(10)+b(0)$

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Divide both sides by 10:

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$3=a$

So $a=3$ and $b=5$ .

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3 years ago

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Answer:

Yes, Sally has enough money to buy 28 cans of soda.

Step-by-step explanation:

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Using an exponential function, it is found that there will be 32,866 pigeons in 13 years.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

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