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3 years ago

The system of equations 2y = 14 - 2x and y=-x+ 7 is

Mathematics

2 answers:

Dimas [21]3 years ago

8 0

Answer:

infinitely many solutions

Step-by-step explanation:

i know because i had the question on i-ready and got it right

Ratling [72]3 years ago

6 0

Answer:

Infinitely many solutions

Step-by-step explanation:

2y=14-2x

y=-x+7

------------

2(-x+7)=14-2x

-2x+14=14-2x

-2x-(-2x)=14-14

-2x+2x=0

0=0

infinitely many solutions

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3 years ago

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Step-by-step explanation:

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2 years ago

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2 years ago

The population of a local species of dragonfly can be found using an infinite geometric series where a1=42 and the common ratio

san4es73 [151]

$\bf \textit{sum of an infinite geometric serie}\\\\
\stackrel{for~~|r|\ \textless \ 1}{S=\sum\limits_{i=0}^{\infty}~a_1r^i\implies \cfrac{a_1}{1-r}}\qquad 
\begin{cases}
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
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\end{cases}
\\\\\\
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bearing in mind that, the geometric sequence is "convergent" only when |r|<1, or namely "r" is a fraction between 0 and 1.

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