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Oksanka [162]
3 years ago
5

Y = – 3

Mathematics
2 answers:
KonstantinChe [14]3 years ago
6 0

The  best approximation for the solution to this system of equations is (-2.2,-3)

Option C is correct.

Step-by-step explanation:

Solving the system of equations to get the exact value of x:

y = -3\\y = x-0.8

Let

y = -3\,\,eq(1)\\y = x-0.8\,\,eq(2)

Putting value of y from eq(1) into eq(2)

-3=x-0.8

x=-3+0.8

x=-2.2

So, Value of x is -2.2

The  best approximation for the solution to this system of equations is:

x=-2.2 and y = -3

(-2.2,-3)

Option C is correct.

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

Eduardwww [97]3 years ago
4 0

Answer:

C:(-2.2,-3)

Hope this helps!!

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Read the question then answer it
True [87]

Answer:

Figure show demonstration of \frac{1}{6} and  \frac{1}{30}

Step-by-step explanation:

Let chosen fraction be \frac{1}{6}

Now we multiply fraction with \frac{1}{5}

Result will be

= \frac{1}{6}\times\frac{1}{5}

= \frac{1}{30}

Figure show demonstration of \frac{1}{6} and  \frac{1}{30}

 

4 0
3 years ago
What is the standard form equation of the line shown below? (1 point)
kaheart [24]

Answer:

Choice 1.  -3x + 2y = 5.

Step-by-step explanation:

The slope of the line = y2-y1/x2-x1

= (4 - 1) / (1 - (-1))

= 3/2.

To find the equation of the line we use the point-slope form of the equation of a line:

y - y1 = m(x - x1)  where m = slope and (x1, y1) is a point on the line. So using m = 3/2 and the point (1, 4):

y - 4 = 3/2(x - 1)

y - 4 = 3/2 x - 3/2

Multiply through by 2:

2y - 8 = 3x - 3

-3x + 2y = -3 + 8

-3x + 2y = 5 (answer).


6 0
4 years ago
As shown at the right, rectangle abcd has vertices c and d on the. V-axis and vertices a and b on the part of the parabola y — 9
Sergio039 [100]

a) The <em>perimeter</em> function of the rectangle is p = 18\cdot x -2\cdot x^{3}.

b) The domain of the <em>perimeter </em>function is x \in [-3, 3].

<h3>How to analysis the perimeter formula of a rectangle inside a parabola</h3>

a) The perimeter of a rectangle (p) is the sum of the lengths of its four sides:

p = AB\cdot AC (1)

If we know that AB = 2\cdot x and AC = 9-x^{2}, then the perimeter of the rectangle is represented by the following formula:

p = 2\cdot x \cdot (9-x^{2})

p = 18\cdot x -2\cdot x^{3}

The <em>perimeter</em> function of the rectangle is p = 18\cdot x -2\cdot x^{3}. \blacksquare

b) The domain of the function is the set of values of x associated to the function. After a quick inspection, we find that the domain of the <em>perimeter </em>function is x \in [-3, 3]. \blacksquare

<h3>Remark</h3>

The statement is incomplete and poorly formatted. The correct form is described below:

<em>As shown at the right, rectangle ABCD has vertices C and D on the x-axis and vertices A and B on the part of the parabola </em>y = 9-x^{2}<em> that is above the x-axis. a) Express the perimeter </em>p<em> of the rectangle as a function of the x-coordinate of A. b) What is the domain of the perimeter function?</em>

To learn more on rectangles, we kindly invite to check this verified question: brainly.com/question/10046743

4 0
2 years ago
What is the sum of 6dm, 40mm, 2m and 10cm in meters?
sveticcg [70]

Answer:

<h2><u><em>2.74 m</em></u></h2>

Step-by-step explanation:

<u><em>convert to meters</em></u>

6 dm = 0.6 m

40 mm = 0.04 m

2 m = 2 m

10 cm = 0.1 m

sum

0.6 + 0.04 + 2 + 0.1 =

2.74 m

7 0
2 years ago
Read 2 more answers
Graphing linear equations
ella [17]

Answer:

To ensure uniformity on an exam

Or

To test whether you can distinguish between the two formats

Step-by-step explanation:

Standard form is when a straight line equation is rearranged in the form:

ax + by = c

Therefore y=2x+4 in standard form is

2x - y =  - 4

The slope-intercept form is when a a straight line equation is written in the form:

y =  mx + c

where m is the slope and c is the y-intercept.

The given equation is

y =  -  \frac{1}{2} x  - 5

This is already in slope-intercept form:

The standard form and slope-intercept forms are just formats.

Your instructor may restrict you to leave your answer in one of these formats maybe for uniformity on a test.

You may also decide to rewrite an equation in slope-intercept form, so that you can easily identify the slope and y-intercept easily for graphing purpose.

6 0
4 years ago
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