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PIT_PIT [208]
3 years ago
11

X = – 2y – 1 x = – 5y + 5

Mathematics
1 answer:
motikmotik3 years ago
6 0

Answer:

x = -5

y = 2

Step-by-step explanation:

x = – 2y – 1

= -x - 2y - 1

-x - 2y = 1

x = – 5y + 5

= -x - 5y + 5

-x - 5y = -5

-x - 2y = 1

-x - 5y = -5

___________--

3y = 6

y = 6/3

<u>y = 2</u>

-x - 2y = 1

-x - 2(2) = 1

-x - 4 = 1

-x = 1 + 4

-x = 5

<u>x = -5</u>

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Dori bought a sandwich for $6.75, a bag of dried fruit for $1.45 and a bottle of water for $1.75. She paid the cashier with a $2
Len [333]

Answer:

She would receive $10.05 cents back

Step-by-step explanation:

Add 6.75, 1.45, and 1.75. You would get 9.95. Then, you would subtract $20.00 by $9.95, getting 10.05 as change.

Hope this helps!

5 0
3 years ago
Which graph has a domain of -∞ &lt; x &lt; ∞ and a range of -∞ &lt; y
Alenkasestr [34]

The graph of the option in the question has a domain of -∞ < x < 3.5.

  • Please find attached the drawing of a graph that has a domain of -∞ < x < ∞

<h3>Which method can be used to find the graph that has a domain of -∞ < x < ∞?</h3>

The domain of a graph are the possible x-values that can be obtained from the graph.

A graph that has a domain given by the inequality, -∞ < x < ∞ does not have a vertical asymptote.

An asymptote is a straight line to which a graph approaches, as either the<em> </em><em>x </em>or y-value approaches infinity.

The given graph has a vertical asymptote at <em>y </em>≈ 3.5

The domain of the given graph is therefore, -∞ < x < 3.5

Similarly, the graph has a horizontal asymptote at <em>x</em> ≈ 3

The range of the given graph is therefore, -∞ < y < 3.

A graph that has a domain of -∞ < x < ∞, extends to infinity to the left and the right of the graph.

A function that has a graph with a domain of -∞ < x < ∞ is one of direct proportionality.

An example is, <em>y </em>= x

  • A graph that has a domain of -∞ < x < ∞ is attached.

Learn more about the domain and range of a graph here:

brainly.com/question/2083771

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6 0
2 years ago
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koban [17]

Answer:

Step-by-step explanation: step : Place the given line’s equation in slope- intercept form y = mx + b. A line parallel to this line will have the same slope.

7x - y = 4. Yields y = 7 x - 4. Therefore y = 7x - 5 is the correct answer.

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seraphim [82]

Step-by-step explanation:

d/dx [f(x)]

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