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Arte-miy333 [17]
3 years ago
14

What is the solution of the system? Use elimination. 5x = -30 + 5y 20y = 105 + 5x 0 (-1,4) D5, 20) KO (-1, 5) (5.-1)​

Mathematics
1 answer:
user100 [1]3 years ago
6 0
<h2>Answer:</h2>

First, we will use elimination to solve for y.

5x = -30 + 5y\\20y = 105 + 5x\\\\5x - 5y = -30\\-5x + 20y = 105\\\\15y = 75\\\\y = 5

Now, we will use what we got for y to solve for x.

5x = -30 + 5(5)\\\\5x = -30 + 25\\\\5x = -5\\\\x = -1

Solution:

(-1, 5)

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Answer:

{36, 66, 78}

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Let the measures of the three angles be f, s and t, for first, second and third.  Then s + t = 4f, t = 12 + s, and f + s + t = 180.

Subbing 12 + s for t in the first equation, we get s + 12 + s = 4f.

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This results in two equations in two unknowns (f and s):

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The three angles are

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Answer:

Domain: (-∞, ∞) or All Real Numbers

Range: (0, ∞)

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As x ⇒ -∞, f(x) ⇒ 0

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Step-by-step explanation:

The domain is talking about the x values, so where is x defined on this graph? That would be from -∞ to ∞, since the graph goes infinitely in both directions.

The range is from 0 to ∞. This where all values of y are defined.

An asymptote is where the graph cannot cross a certain point/invisible line. A y = 0, this is the case because it is infinitely approaching zero, without actually crossing. At first, I thought that x = 2 would also be an asymptote, but it is not, since it is at more of an angle, and if you graphed it further, you could see that it passes through 2.

The last two questions are somewhat easy. It is basically combining the domain and range. However, I like to label the graph the picture attached to help even more.

As x ⇒ -∞, f(x) ⇒ 0

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