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IRINA_888 [86]
3 years ago
13

Determine whether set B is a subset of set A. A={0,1,2,3,4} B={1,2}

Mathematics
1 answer:
forsale [732]3 years ago
4 0

Answer:

B is a subset of  set A  because every element of set B is contained in set A

Step-by-step explanation:

The answer to this question is:

B is a subset of  set A  because every element of set B is contained in set A.

We can denote it as B⊆A

<u>Subset:</u>

A subset is a set of elements that are also in another set.  Another way to define a subset is: B is a subset of A if every element of B is contained in A.

It is denoted by B⊆A ....

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The dimensions of the computer screen are modeled by the equation x2 + (x – 4)2 = 202. What is the value of x, the length of the
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Answer:

x = 11.85

Step-by-step explanation:

x^2+(x-4)^2=202

x^2+(x-4)(x-4)=202

x^2 + x^2 - 4x - 4x + 16 = 202

2x^2 - 8x + 16 = 202

2x^2 - 8x - 186 = 0

Apply the quadratic equation and you'll get x as:

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Step-by-step explanation:

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3 years ago
A diver dives from the board at a local swimming pool. Her height, y, in metres, above the water in terms of her horizontal dist
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Answer:

4 meters

Step-by-step explanation:

Given a quadratic equation in which the coefficient of x^2 is negative, the parabola opens up and has a maximum point. This maximum point occurs at the line of symmetry.

Since the divers height, y is modeled by the equation

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Step 1: Determine the equation of symmetry

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Equation of symmetry, x=-\dfrac{b}{2a}

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That is, we substitute x obtained above into the y and solve.

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The maximum height of the diver is therefore 4 meters.

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