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katrin [286]
3 years ago
10

How many solutions does the system have? y= -2x - 4 y= 3х + 3

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
8 0

Answer:

One solution

Step-by-step explanation:

The system has one solution and that is (-1.4, -1.2)

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Katrina is asked to simplify the expression Negative 3 a minus 4 b minus 2 (5 a minus 7 b).
nekit [7.7K]

Answer:

Distributive property

Step-by-step explanation:

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4 0
3 years ago
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Three U.F.O.'s were constructed in consecutive years. Their ages have a sum of
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Step-by-step explanation:

41 plus 42 plus 43 = 126.

7 0
3 years ago
A pyramid has a square base with sides of length s. The height of the pyramid is equal to - of the length of a side on the base.
Vera_Pavlovna [14]
<h3><u>Question:</u></h3>

A pyramid has a square base with sides of length s. The height of the pyramid is equal to 1/2 of the length of a side on the base. Which formula represents the volume of the pyramid?

<h3><u>Answer:</u></h3>

<em><u>The formula represents the volume of the pyramid is:</u></em>

V=\frac{1}{6}s^3

<h3><u>Solution:</u></h3>

<em><u>The volume of square pyramid is given by formula:</u></em>

V = \frac{1}{3} a^2h

Where, "h" is the height of pyramid

"a" is the length of side of base

Here given that, pyramid has a square base with sides of length s

Therefore,

a = s

The height of the pyramid is equal to 1/2 of the length of a side on the base

h = \frac{1}{2} \times s\\\\h = \frac{s}{2}

<em><u>Thus the volume of pyramid becomes:</u></em>

V = \frac{1}{3} \times s^2 \times \frac{s}{2}\\\\V = \frac{s^3}{6}

\boxed{V=\frac{1}{6}s^3}

Thus the  formula  represents the volume of the pyramid is \frac{s^3}{6}

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3 years ago
The blue segment below is a diameter of O. What is the length of the radius of the circle?
svlad2 [7]
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2r=10.2
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Therefore, the radius is 5.1 units which makes the answer choice C correct.

Hopefully, this helps!
5 0
3 years ago
Read 2 more answers
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