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4 years ago

Round 13 to the nearest ten

Mathematics

2 answers:

Assoli18 [71]4 years ago

8 0

Mother answer to your question is 10

german4 years ago

5 0

Any number from 15 or higher would round to twenty but since it is only 13 it should just round to 10

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How do i graph y=1/2Sinø/2?

podryga [215]

$\fb \qquad \qquad \qquad \qquad \textit{function transformations}
\\ \quad \\
% function transformations for trigonometric functions
\begin{array}{rllll}
% left side templates
f(x)=&{{ A}}sin({{ B}}x+{{ C}})+{{ D}}
\\\\
f(x)=&{{ A}}cos({{ B}}x+{{ C}})+{{ D}}\\\\
f(x)=&{{ A}}tan({{ B}}x+{{ C}})+{{ D}}
\end{array}
\\\\
-------------------$

$\bf \bullet \textit{ stretches or shrinks}\\
\left. \qquad \right. \textit{horizontally by amplitude } |{{ A}}|\\\\
\bullet \textit{ flips it upside-down if }{{ A}}\textit{ is negative}\\
\left. \qquad \right. \textit{reflection over the x-axis}
\\\\
\bullet \textit{ flips it sideways if }{{ B}}\textit{ is negative}\\
\left. \qquad \right. \textit{reflection over the y-axis}$

$\bf \bullet \textit{ horizontal shift by }\frac{{{ C}}}{{{ B}}}\\
\left. \qquad \right. if\ \frac{{{ C}}}{{{ B}}}\textit{ is negative, to the right}\\\\
\left. \qquad \right. if\ \frac{{{ C}}}{{{ B}}}\textit{ is positive, to the left}\\\\
\bullet \textit{vertical shift by }{{ D}}\\
\left. \qquad \right. if\ {{ D}}\textit{ is negative, downwards}\\\\
\left. \qquad \right. if\ {{ D}}\textit{ is positive, upwards}$

$\bf \bullet \textit{function period or frequency}\\
\left. \qquad \right. \frac{2\pi }{{{ B}}}\ for\ cos(\theta),\ sin(\theta),\ sec(\theta),\ csc(\theta)\\\\
\left. \qquad \right. \frac{\pi }{{{ B}}}\ for\ tan(\theta),\ cot(\theta)$

now, with that template in mind,

$\bf \stackrel{parent~function}{y=sin(\theta )}\qquad \qquad y=\stackrel{A}{\frac{1}{2}}sin\left(\stackrel{B}{\frac{1}{2}}\theta \right)
\\\\\\
Amplitude\implies \frac{1}{2}
\\\\\\
Period\implies \cfrac{2\pi }{B}\implies \cfrac{2\pi }{\frac{1}{2}}\implies 4\pi$

which is pretty much the same sin(θ) function, but squished by 1/2 and elongated up to 4π, check the picture below.

7 0

3 years ago

The mean temperature for the first 7 days in January was 6 °C.

charle [14.2K]

Answer:

3.5 degrees celcius for first 8 days

6 0

4 years ago

Which geometric series represents 0.4444... as a fraction?

Lina20 [59]

The answer is C. 4/10+4/100+4/1000+4/10000. Hope it help!

4 0

3 years ago

Read 2 more answers

There are 10 employees in a particular division of a company. Their salaries have a mean of $70,000, a median of $55,000, and a

Sindrei [870]

Solution:

a. original $\bar{x} =70,000 =\frac{\sum x}{n}$

$\therefore \sum x = 70,000 \times 10 =700,000$

$modified \sum x = 700,000 - 100,000 + 1,000,000 = 1,600,000$

$modified \bar{x} = \frac{1,600,000}{10} =160,000$

b. Median remains the same.

c. $original s^{2}=(20,000)^{2}=400000000=\frac{1}{n-1}[\sum x^{2}- n\bar{x}^{2}]$

$\therefore orig. \sum x^{2} = (10-1)(20000)^{2} + 10(70000)^{2}$

$=52600000000$

$mod. \sum x^{2} = 52600000000-100000^{2} +1000000^{2}$

$=1.0426E+12$

$mod.s^{2} = \frac{1}{n-1} [\sum x^{2} - n\bar{x}^{2}]$

$=\frac{1}{9} [1.0426E+12 - 10 \times 160000^{2}]$

$=87400000000$

$modified s= \sqrt{s^{2}} =\sqrt{87400000000} =295634.91$

8 0

4 years ago

Mr. Kiernan decides to purchase a new West Virginia flag for his room that is double

Alla [95]

Answer:

$50.16

Step-by-step explanation:

There is a sale tax on the item to be purchased, and the tax is 4.5% of the amount of the flag i.e 4.5% × $48.00 = $2.16

After the rate of the sale tax has been changed to dollars, we then add the amount of the sales to the amount of the flag to give the total amount to be paid i.e $2.16 + $48.00 = $50.16

Thank You

4 0

4 years ago

Read 2 more answers