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marta [7]
3 years ago
13

What is the solution for these lines (line a ) x+2y=4 (line b ) 3x-2y=4

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
7 0
Line a) x+2y=4
slope: -(1/2)
y-intercept: 2

line b) 3x-2y=4
slope: 3/2
y-intercept: -2
Amanda [17]3 years ago
3 0
X+2y=4
3x-2y=4
4x=8
x=2
2+2y=4
2y=2
y=1

y=1
x=2

Hope this helps :)
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So im really confused by this and could use some help.
Otrada [13]

Answer:

Nancy fits the equation.

Step-by-step explanation:

I think they're asking which gorilla fits the equation.

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<em>Add 15 to both sides</em>

2b=620

<em>Divide both sides by 2</em>

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5 0
3 years ago
The price of an item has dropped to $46 today yesterday was $115 find the percent decrease
Svetach [21]
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Could I get help/an explanation on this problem? Thanks
LUCKY_DIMON [66]

Answer:

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Step-by-step explanation:

3 0
3 years ago
A geometric sequence is defined by the equation an = (3)3 − n.
Delvig [45]
PART A

The geometric sequence is defined by the equation

a_{n}=3^{3-n}

To find the first three terms, we put n=1,2,3

When n=1,

a_{1}=3^{3-1}

a_{1}=3^{2}

a_{1}=9
When n=2,

a_{2}=3^{3-2}
a_{2}=3^{1}

a_{2}=3

When n=3

a_{3}=3^{3-3}

a_{3}=3^{0}
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The first three terms are,

9,3,1

PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
r= \frac{a_{2}}{a_{1}}
r = \frac{3}{9}

r = \frac{1}{3}

PART C

To find
a_{11}

We substitute n=11 into the equation of the geometric sequence.

a_{11} = {3}^{3 - 11}

This implies that,

a_{11} = {3}^{ - 8}

a_{11} = \frac{1}{ {3}^{8} }

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4 0
3 years ago
Express in the form 1 : n Give n as a decimal 10 : 12
Studentka2010 [4]

Answer:

1:1.2

Step-by-step explanation:

please give me a brainliest!!<3

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