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hammer [34]
3 years ago
11

How many solutions does the system have? 6x-y=-1 6x+y=-1

Mathematics
1 answer:
vitfil [10]3 years ago
5 0
This system only have one solution to the problem that is asked
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What is a theorem called before it is proven?
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A postulate is an assumption we use for mathematical reasoning; it isn't yet proven. once it's proven, it becomes a theorem.
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Please help with my math problem. What's 3+2? 10 points.
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5

Step-by-step explanation:

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A company makes traffic signs one of those signs can be modeled by an equilateral triangle with the perimeter of 144 inches the
barxatty [35]

Answer:

The height of the larger traffic signs is 51.96 inches

Step-by-step explanation:

Given that initially, A company makes traffic signs of an equilateral triangle with the perimeter of 144 inches

Now, A company makes similar traffic signs of perimeter 1.25 of original

New perimeter will be 1.25x144=180 inches

Let triangle ABC be a larger triangle with 180inches of the perimeter.

It is given that the triangle is an equilateral triangle,

Therefore, Side AB=BC=AC

The perimeter of a triangle ABC is

AB+BC+AC=180

3AB=180

AB=60 inches

Figure show that triangle ABC and AD is the height of the triangle.

Since, the triangle ABC is an equilateral triangle,

AD is the perpendicular bisector of BC

so that,

BD=DC and Angle ADB=90

In right triangle ADB,

Angle D =90 and Angle B =60

Side BD=60/2=30 inches and AB=60 inches

Using Pythagoras theorem,

AD^{2} +BD^{2} =AC^{2}

(AD)^{2} +(30)^{2} =60^{2}

(AD)^{2} =60^{2}-(30)^{2}

AD=51.96 inches

Thus, The height of the larger traffic signs is 51.96 inches

4 0
3 years ago
(fx+cd)/(x-f)=1/2 solve for x
sesenic [268]

Answer:

Step-by-step explanation:

(fx+cd)/(x-f)=1/2

Cross multiplication,

2*(fx + cd) = 1 * (x-f)

2fx + 2cd = x - f

2fx - x  = -2cd - f

x (2f - 1) = -2cd -f

x = (-2cd-f )/ (2f-1)

6 0
3 years ago
A $52 video game is advertised for 20% off.If sales tax is 6% how much will the video game cost​
Usimov [2.4K]

Answer:

S44.10

Step-by-step explanation:

20% of 52 is 41.6

6% of 41.6 is 2.49600 US$ which rounds to 2.50

2.50+41.6=44.1

$44.10

7 0
3 years ago
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