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3 years ago

4x+8y=-4 -5x + 3y=-21 (3-2)

Mathematics

1 answer:

cricket20 [7]3 years ago

5 0

Answer:

x + 2y + 1 = 0

-5x+3y-21 = 0

(3-2) = 1

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Which number line plots the integers –12, –3, and 7?

lukranit [14]

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A number line going from negative 15 to positive 10,the Points are at negative 12, negative 3, and 7.

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3 years ago

3(s-5)/4 -3 = 4s- (s-3)/2<br>pls answer fast

Jobisdone [24]

Answer:

$s = \frac{9± \sqrt{ - 39} }{4}$

Step-by-step explanation:

$\frac{3(s - 5)}{4 - 3} = \frac{4s \times (s - 3)}{2}$

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3 years ago

(06.02) A linear function that represents the number of animals adopted from the shelter is compared to a different linear funct

irga5000 [103]

Answer:

1) These linear functions must not describe a pair of parallel lines.

2) Any intersection of two lines determines a point.

Step-by-step explanation:

Hi there!

Well, since no further details were given. Let's call the linear function that represents the number of animals adopted from the shelter $s(x)$ . And

the hours the volunteers work at the shelter each week $v(x)$

1) These linear functions must not describe a pair of parallel lines.

If these lines intersect, then their slope must be different.

$m_{s}\neq m_{v}\\e.g.\\m_{s}=2\\m_{v}=-2$

Equal slopes, parallel lines. Parallel lines, no intersection.

Different slopes, then there is an intersection at some point.

2) Any intersection of two lines determines a point. Let's find it.

So to find one common point equalize the two functions, then find the value for the x-coordinate. Plug it in one of the functions, e.g.

$2x+2=-2x+2 \rightarrow 4x=0 \therefore x=0\\2(0)+2=2 \Rightarrow (0,2)$

At the common point, both functions after inserted the same value in the Domain (x) return the same result for their respective Range set.

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3 years ago