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2 years ago

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Jennifer is a lifeguard at the same pool. She earns $220.50 for 18 hours of lifeguarding. How much does Jennifer earn per hour?A

.$12.00b.$12.25c.$12.50d.$12.75

1 answer:

Alex2 years ago

8 0

Answer:

b.12.25

Step-by-step explanation:

You just simply divide 220.50 by 18 and you will end up with the rate per hour.

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NO LINKS!!!<br><br>Find the indicated side for each triangle below:

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Problem 5

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=============================================================

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1 year ago

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Given the circle with the equation (x + 1)2 + y2 = 36, determine the location of each point with respect to the graph of the cir

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$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x+1)^2+y^2=36\implies [x-(\stackrel{h}{-1})]^2+[y-\stackrel{k}{0}]^2=\stackrel{r}{6^2}~~~~
\begin{cases}
\stackrel{center}{(-1,0)}\\
\stackrel{radius}{6}
\end{cases}$

so, that's the equation of the circle, and that's its center, any point "ON" the circle, namely on its circumference, will have a distance to the center of 6 units, since that's the radius.

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
(\stackrel{x_1}{-1}~,~\stackrel{y_1}{0})\qquad 
A(\stackrel{x_2}{-1}~,~\stackrel{y_2}{1})\qquad \qquad 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
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$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
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\\\\\\
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notice, the distance to B is exactly 6, and you know what that means.

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
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\\\\\\
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