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stiks02 [169]
3 years ago
10

15 points !! Estimate the solution to the following system of equations by graphing.

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0
For this case we have the following system of equations:
 -4x + 5y = 8
 6x - y = 11
 The solution is the ordered pair where both functions intersect. 
 In this case, the point of intersection is:
 (x, y) = (5/2, 7/2)
 Answer:
 (x, y) = (5/2, 7/2)
 option 1See attached image

mote1985 [20]3 years ago
6 0

Answer:

option 1

Step-by-step explanation:

You might be interested in
Which equation represents the graph ?
Ronch [10]

Answer:

The equation of the line is;

y + 4 = 3(x + 4)

Step-by-step explanation:

The general equation of a line is;

y = mx + b

where m is the slope and b is the y-intercept

To get the equation, let us look at the given intercepts

We have the intercepts at the point (0,5) and (-2,-1)

We have the slope of the line as follows;

m = (y2-y1)/(x2-x1) = (-1-5)/(-2-0) = -6/-2 = 3

So we have the equation as;

y = 3x + b

recall, we have the y-intercept as 5

so the complete equation is;

y = 3x + 5

Now, we can rewrite this as;

y+ 4 = 3(x + 3)

5 0
3 years ago
Find the area of the shaded regions:
Crank

First, we'll find the area of the large section, including the smaller section that is white.

Area of a circle: pi x r^2

A = pi x 7^2

A = 49pi x 120/360

A = 49/3 pi cm^2

Now, we'll find the area of the small section.

A = pi x 3^2

A = 9 pi x 120/360

A = 3pi cm^2

All that's left to do now is subtract.

49/3 pi - 3 pi

40/3 pi cm^2

(or 13 1/3 = 13.33 cm^2)

Hope this helps!

6 0
4 years ago
A distribution is given as
Nesterboy [21]

Answer:

the answer will be 5.

Step-by-step explanation:

6 0
4 years ago
If 2/x+ 3/y =13 and 5/x- 4/y = -2, then x+y equals
creativ13 [48]

Answer:

x + y =  \frac{5}{6}

Step-by-step explanation:

Let:

u =  \frac{1}{x}  \\ v =  \frac{1}{y}

This allows us to manipulate the equations like we normally would.

2u + 3v = 13 \\ 5u - 4v =  - 2 \\  \\   + 8u + 12v = 52 \\  + 15u - 12v =  - 6 \\ 23u = 46 \\ u = 2 \\  \\ 2(2) + 3v = 13 \\ 4 + 3v = 13 \\ 3v = 9 \\ v = 3

Then, we return the values where they belong.

u =  \frac{1}{x}  \\ 2 =  \frac{1}{x}  \\ x =  \frac{1}{2}  \\  \\ v =  \frac{1}{y}  \\ 3 =  \frac{1}{y}  \\ y =  \frac{1}{3}

Finally, we add:

\frac{1}{2}  +  \frac{1}{3}  =  \frac{3}{6}  +  \frac{2}{6}  =  \frac{5}{6}

7 0
3 years ago
Which of the following questions is a statistical question?
stellarik [79]

Answer:

Where is the question

Step-by-step explanation: you showed no question

6 0
3 years ago
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