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3 years ago

Miguel had 24 quarters and 42 nickels in his bank. His dad

Mathematics

1 answer:

velikii [3]3 years ago

6 0

183 is the total amount of how much coins he has 58 quarters and then he has 125 nickels

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3. A company with loud machinery needs to cut its sound intensity to 44% of its original level. By how many decibels would the l

sergeinik [125]

Answer: 3. The correct option is: A) 3.57 decibels.

6. The correct option is: B) $ln(\frac{x^2}{c^5})$ 

Step-by-step explanation:

3. Sound intensity is cut to 44% of its original level. That means, if the original sound intensity was 100, then now sound intensity will be 44.

So, $I_{0}= 100$ and $I= 44$

Using the formula $L= 10log(\frac{I}{I_{0}})$ , we will get.....

$L= 10log(\frac{44}{100})\\ \\ L= 10log(0.44)\\ \\ L= 10(-0.3565...)=-3.565...\approx -3.57$

(Rounded to the nearest hundredth)

So, the loudness would be reduced by 3.57 decibels.

6. Given expression is: $2ln(x) - 5ln(c)$

First applying the property $m*log(x)= log(x^m)$ , we will get.....

$ln(x^2)-ln(c^5)$

Now using the formula, $log(a)-log(b)= log(\frac{a}{b})$ , we will get....

$ln(x^2)-ln(c^5) = ln(\frac{x^2}{c^5})$

Thus, the answer as a single natural logarithm is $ln(\frac{x^2}{c^5})$

8 0

3 years ago

Determine the intercepts of the line. 5x-9=-8y-3

Ray Of Light [21]

Hey there,

The x-intercept is= 6/5 = 1.20000

The y-intercept is= 6/8 = 3/4 = 0.75000

7 0

3 years ago

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What is the principle for f)? The math is Simple Interest

Tamiku [17]

See the attachment °_° I hope it helps :-)

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3 years ago

Russ paid $5,893 for a used car and sold it 6 weeks later for $5,993. Which statement is true?

likoan [24]

The answer to this is a

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3 years ago

PLwz help thank youuuuuuuuuuuu

MatroZZZ [7]

y = |x|

This is absolute value because it's a v-shape.

4 0

4 years ago