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Ludmilka [50]
3 years ago
8

What is the value of x?

Mathematics
1 answer:
Orlov [11]3 years ago
5 0

Answer:

x = 24.5

Step-by-step explanation:

There are two similar triangles. In similar triangles the sides are in proportion.

Let's name big triangle as triangle 1 and small triangle as triangle 2.

The sides of the big triangle:

27 as base and the longest side (x + 7)

The sides of the small triangle:

base = 27 - 6 = 21

longest side = x

We need to find the value of x using proportion.

27/21 = (x + 7)/ x

By cross multiplying, we get

27(x) = 21(x + 7)

27x = 21x + 147

27x - 21x = 147

6x = 147

Dividing both sides by 6, we get

x = 147/6

x = 24.5

The value of x = 24.5

Hope you will understand the concept.

Thank you.

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Injective: a horizontal line crosses the graph in one point.

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The cosine function is not injective, bijective nor surjective.

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5)  Quite unclear format

6) \:f:\Re\rightarrow(0,\infty), f(x) =ex

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7) f:\Re\geq 0 \rightarrow  \Re\geq0, f(x) =x^{4}

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8).f:\{-1,2,-3\}}\rightarrow \{1,4,9\}, f(x) =x^{2}

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Step-by-step explanation:

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3 years ago
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