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DENIUS [597]
2 years ago
7

3. What is the solution to the equation 3x = 15? Express the

Mathematics
1 answer:
ivanzaharov [21]2 years ago
4 0

Answer:

x=2.4650

Step-by-step explanation:

I assume that you mean 3^x=15

so let s use the ln() function

ln(3^x)= xln(3)=ln(15)

so x = ln(15)/ln(3)

x = 2.4650

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3.2 geometry worksheet
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Answer/Step-by-step explanation:

5. 21x + 4 = 22x - 2 (corresponding angles)

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21x - 22x = -4 - 2

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divide both sides by -1

x = 6

6. (x + 72) + (x + 132) = 180 (linear pair)

x + 72 + x + 132 = 180

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7. 90 = 22x + 2 (vertical angles)

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8. 12x + 10 = 13x + 3 (vertical angles)

Collect like terms

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Divide both sides by -1

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9. 17x = 16x + 5 (alternate exterior angles)

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✔️17x

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3 0
3 years ago
2. Saul invested an average of $425 per month since age 30 in various securities for his
BabaBlast [244]

Answer:

$507.30

Step-by-step explanation:

-Given the monthly deposits are $425 and the interest rate is 3.5% for 30 years.

-The amount of the investment after 30 years is calculated as;

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{30\times 12}\\\\=1212.65

-Assuming Saul started saving at age 20, his investment term will be 40 yrs.

-His investment amount is thus:

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{40\times 12}\\\\=1719.95

#We subtract to find how much more he would have if he started saving at 20;

=A_{20}-A_{30}\\\\=1719.95-1212.65\\\\=507.30

Hence, Saul would have $507.30 more had he started saving 10 years earlier.

5 0
3 years ago
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