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3 years ago

What’s —-1+1 just testing this app btw

Mathematics

2 answers:

Yuki888 [10]3 years ago

8 0

The answer would be 0.

Naya [18.7K]3 years ago

7 0

Answer: 0.

Step-by-step explanation:

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What is the equation of the coordinate A and B if they are (4,7), (6,3) respectively. What is the equation of the straight line.

Nesterboy [21]

Answer: y+2x=15

Step-by-step explanation:

Given

Two points A and B are (4,7) and (6,3) respectively

Using two-point form

$\Rightarrow \dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}$

Putting values

$\Rightarrow \dfrac{y-7}{x-4}=\dfrac{3-7}{6-4}\\\\\Rightarrow \dfrac{y-7}{x-4}=\dfrac{-4}{2}=-2\\\\\Rightarrow y-7=-2x+8\\\\\Rightarrow y+2x=15$

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3 years ago

Solve the following exponential equation:<br><br>5^x=2 <br><br>e^x=10

olya-2409 [2.1K]

Number 1.

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$x=\frac{log(2)}{log(5)}$ , which then gives us that $x=0.4306777777....$

Number 2

$e^x=10$ , solve for our exponent, $2.718282^x=10$ , use the logarithmic formula, and we get,

$x=\frac{log(10)}{log(2.718282)}$ , which then we get that $x=2.302585$

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2 years ago

Which pair of numbers is relatively prime?

AnnZ [28]

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3 years ago

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Given an exponential function for compounding interest, A(x)=P(1.02)^x, what is the rate of change?

Rudiy27

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\\
r=rate\to r\%\to \frac{r}{100}\\
t=\textit{elapsed time}\\
\end{cases}\\\\
-------------------------------\\\\
\stackrel{A}{A(x)}=\stackrel{I}{P}(1.02)^{\stackrel{t}{x}}\implies A=P(1+\stackrel{r}{0.02})^x\implies \cfrac{r}{100}=0.02
\\\\\\
r=100\cdot 0.02\implies r=\stackrel{\%}{2}$

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3 years ago

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A family uses 12,986.64 Swiss francs per year to pay a mortgage that requires US dollars. Approximately how much, in US dollars,

dezoksy [38]

Answer:

Step-by-step explanation:

Per year: 12,986.64 * 1.11 = 14,415.1704 US dollars

Per month: 14,415.1704/12 = 1,201.2642 US dollars

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3 years ago

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