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ehidna [41]
3 years ago
11

Pierce swims 10 laps in a pool in 8 mins. He spent the same on each lap. How much time did each lap take him? In a fraction

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

10/8

Because you need to divide 10 laps by the amount of time it took, which is 8 minutes.

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vfiekz [6]
I’ll answer in just a quick min
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A parabola can be drawn given a focus of (-9, -7) and a directrix of x = 9. Write
Slav-nsk [51]

Check the picture below, so the parabola looks more or less like so, with a vertex at (0 , -7), let's recall the vertex is half-way between the focus point and the directrix.

so this horizontal parabola opens up to the left-hand-side, meaning that the "P" distance is a negative value.

\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}

\begin{cases} h=0\\ k=-7\\ p=-9 \end{cases}\implies 4(-9)(x-0)~~ = ~~[y-(-7)]^2 \\\\\\ -36x=(y+7)^2\implies x=-\cfrac{1}{36}(y+7)^2

4 0
2 years ago
If the circumference of a circle measures 12π cm, what is the area of the circle in terms of π?
Xelga [282]

If C=2\pi r then r=6 and A=\pi r^2=\boxed{36\pi}.

Hope this helps.

4 0
3 years ago
Read 2 more answers
How many number are a units away from 0, if a&gt;0?
NikAS [45]

The number of numbers which are a units away from 0 if a>0 is; 2 numbers.

<h3>Distance between numbers on the number line</h3>

by convention, the distance between two numbers on the number line is usually a positive number.

On this note, since the required numbers are a units away from zero, it follows that;

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OR

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On this note, only 2 numbers are a units away from zero according to the given condition.

Read more on number line;

brainly.com/question/17555743

6 0
2 years ago
Estimate 3 1/3 - (-5)
lorasvet [3.4K]
Well, we can make it 3 + 5 

3 + 5 = 8


Hope I helped!

~ Zoe
5 0
3 years ago
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