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MA_775_DIABLO [31]
2 years ago
13

How many of the following relations are functions ?

Mathematics
1 answer:
luda_lava [24]2 years ago
7 0

Answer:

3

Step-by-step explanation:

The first set is a function because each x-value has only one given y-value, the second funtion is a function because it is a quadratic equation, the third equation isn't a function because of the point of discontinuity at x=0 because of 1/0 being undefined, and the fourth equation is a linear function.

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If 1 mile is equal to 1.6 kilometers, convert 50 kilometers to miles.
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1 mile = 1.6 km
x = 50 × 1.6
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2x + 3 + 4x + 8 = 3x - 10
vodomira [7]

\text {Hello! Let's solve this Equation!}

\text {Your First Step is to Simplify the Equation:}

\text {(2x+4x)+(8+3)}

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Marta_Voda [28]

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Step-by-step explanation:

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How do i do this idk how to do
marysya [2.9K]

Let's find the perimeter first by adding all the side lengths together. There are two missing side lengths, which we can find by taking the side opposite them and subtract the side behind the missing side from them.

I've attached a diagram showing how to find the side lengths.

Now let's add all the side lengths together: 4 cm + 8 cm + 8 cm + 2 cm + 4 cm + 6 cm = 32 cm

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---

To find the area we can divide this figure into 2 rectangles. On the second attached diagram, I've split the figure into two and labeled the length and width of each rectangle.

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The area of the figure is 40 cm².

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