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nignag [31]
3 years ago
14

Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. How long is her dance class?

Mathematics
2 answers:
qwelly [4]3 years ago
8 0
From 4 PM to 6 PM is 2 hours, and it's 15 minutes after 6, so her dance class is 2 hours and 15 minutes long.
fgiga [73]3 years ago
5 0
The answer is 1 hour and 45 minutes because 4:30-5:30 is one hour than 5:30-6:15 is 45 minutes and then you just add them together and it gives you 1 hour and 45 minutes.
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natulia [17]


2/5

5 goes into 10 2 times and into 25 5 times

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3 years ago
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What is the relationship between exponentials and logarithms? How can you use these to solve equations? Provide an example in yo
Sveta_85 [38]

Answer:

Exponentials and logarithms are inverses of each other.

Step-by-step explanation:

Exponentials and logarithms are inverses of each other.

For logarithmic function:

Domain = \left ( 0,\infty  \right ), Range = \left ( -\infty ,\infty  \right )

Vertical asymptote is y - axis.

x - intercept is (1,0)

For exponential function:

Domain = \left ( -\infty ,\infty  \right ), Range = \left ( 0,\infty  \right )

Horizontal asymptote is x - axis.

y- intercept is (0,1)

Both exponential and logarithmic functions are increasing.

For example:

Solve: \log x=\frac{\log 5+\log 3}{\log 3^2}

\log x=\frac{\log 5+\log 3}{\log 3^2}\\\log x=\frac{\log (5\times 3)}{2\log 3}\,\,\left \{ \because \log (ab)=\log a+\log b\,,\,\log a^b=b\log a \right \}\\=\frac{\log 15}{2\log 3}

\Rightarrow \log x=\frac{\log 15}{2\log 3}\\\Rightarrow x=e^{\frac{\log 15}{2\log 3}}\,\,\left \{ \because \log x=y\Rightarrow x=e^y \right \}

4 0
3 years ago
The number 260 is separate into two parts of the first part is eight more than three times the second part. what are the two num
bagirrra123 [75]

Answer:

63 & 197

Step-by-step explanation:

260  = (3x + 8) + x

260 = 4x + 8

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Thus second number is 3*63+8=197

5 0
3 years ago
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F(x) = -34
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Both are correct
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4 0
3 years ago
The Scooter Company manufactures and sells electric scooters. Each scooter cost $150 to produce, and the company has a fixed cos
jeka94

The function that represents the Scooter Company's total profit is given by:

P(x) = -2x² + 250x - 2,000.

<h3>How to calculate the profit function?</h3>

The profit function is calculated by the <u>revenue function subtracted by the cost function</u>, hence:

P(x) = R(x) - C(x).

In this problem, we have that:

  • The revenue function is: R(x) = 400x - 2x².
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Hence the profit function is:

P(x) = R(x) - C(x).

P(x) = 400x - 2x² - (150x + 2000).

P(x) = -2x² + 250x - 2,000.

More can be learned about profit functions at brainly.com/question/25274969

#SPJ1

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