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Anvisha [2.4K]
2 years ago
6

Which set is closed under subtraction?

Mathematics
2 answers:
ss7ja [257]2 years ago
8 0
The set of rational numbers.
Gemiola [76]2 years ago
7 0

the answer is the set of rational numbers

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What shape is the base of a hockey puck?<br> rectangle<br> circle<br> semi-circle<br> ellipse
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three-fifths of the members of the Spanish club are girls there are a total of 30 girls in the Spanish club which statements can
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\frac{3}{5}x=30 or \frac{3}{5}(\frac{5}{3})x=30(\frac{5}{3}) or x = 50

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I need some help, please help. I have been stuck on this for days.
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Answer:

Angle CDE equals 155 degrees :D

Step-by-step explanation:

parallel lines

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3. March deposited money into an account in which interest is compounded quarterly at a rate of 3.3%. How much did he deposit if
aksik [14]

Answer:

$4125.

Step-by-step explanation:

When solving for the principal we still need to use the formula A = P(1+\dfrac{r}{n})^{nt}.

Let's take all the variables that we do have available and list them out.

A = $4369.20

r = 3.3% or 0.033

n = 4 (Quarterly)

t = 21 months or 1.75 years

Now we can substitute the values and solve for the principal.

A=P(1+\dfrac{r}{n})^{nt}

4369.20=P(1+\dfrac{0.033}{4})^{4(1.75)}

4369.20=P(1+0.00825)^{7}

4369.20=P(1.00825)^{7}

4369.20=P(1.05919912849)

Now we need to divide both sides with 1.05919912849  to get the principal.

\dfrac{4369.20}{1.05919912849}=\dfrac{P(1.05919912849)}{1.05919912849}

P = 4125.00339406 or $4125.

To check for our answer, we can simply substitute the values including the principal and excluding the total.

A=P(1+\dfrac{r}{n})^{nt}

A=4125(1+\dfrac{0.033}{4})^{4(1.75)}

A=4125(1+0.00825)^{7}

A=4125(1.00825)^{7}

A=4125(1.05919912849)

A=4369.19640502 or 4369.20

5 0
3 years ago
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