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Mathematics

1 answer:

Gemiola [76]3 years ago

8 0

Answer: a. 6 rows 6 people per row, 9 rows 4 people in each row, 36 rows 1 person per row, 18 rows 2 people per row, 12 rows 3 people per row, 9 rows 4 people per row

Step-by-step explanation: 4 rows 9 people, 3 rows 12 people

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arsen [322]

Which decimal is value is equilvent to 1/5 is .2

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3 years ago

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|x-7|+5 is greater than or equal to 3

jonny [76]

$\large\begin{array}{l} \textsf{Solve the absolute value inequality:}\\\\ \mathsf{|x-7|+5\ge 3}\\\\ \mathsf{|x-7|\ge 3-5}\\\\ \mathsf{|x-7|\ge -2}\\\\\\ \textsf{Since absolute values always give a non-negative number,}\\\textsf{every real value for x satisfies the inequatily:}\\\\ \textsf{For all }\mathsf{x\in\mathbb{R},}\\\\ \mathsf{|x-7|\ge 0>-2}\\\\\\ \therefore~~\mathsf{|x-7|\ge 2}\\\\ \textsf{regardless of the value of x.} \end{array}$

$\large\begin{array}{l} \textsf{Solution set: }\mathsf{S=\mathbb{R}.} \end{array}$

If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2180151

$\large\textsf{I hope this helps. :-)}$

Tags: <em>absolute value inequatily solve solution algebra</em>

6 0

3 years ago

Find the x intercept of the parabola with vertex 3,-2 and y intercept 0,7 round to the nearest hundredth

12345 [234]

An x-intercept is namely a "solution" or "zero" or "root" often called, and when that happens, y = 0, just like with any other x-intercept.

$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\
-------------------------------\\\\
\begin{cases}
h=3\\
k=-2
\end{cases}\implies y=a(x-3)^2-2
\\\\\\
\textit{we also know that }
\begin{cases}
x=0\\
y=7
\end{cases}\implies 7=a(0-3)^2-2
\\\\\\
9=9a\implies \cfrac{9}{9}=a\implies 1=a\qquad therefore\qquad \boxed{y=(x-3)^2-2}$

so what is its x-intercept anyway?

$\bf \stackrel{y}{0}=(x-3)^2-2\implies 2=(x-3)^2\implies \pm\sqrt{2}=x-3
\\\\\\
\pm\sqrt{2}+3=x\qquad therefore\qquad (\pm\sqrt{2}+3~~~~,~~~~0)$

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3 years ago

A top fuel dragster can use as much as 6 gallons in 4 1 2 412 seconds to travel 1 4 14 mile. At this rate, how many gallons of f

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3 years ago

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The answer is 12 m.

Because you're not studying!

Next time do your mom.

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3 years ago

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