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7nadin3 [17]
3 years ago
13

Helpppppppppppppppppppppppppp

Mathematics
2 answers:
Elan Coil [88]3 years ago
5 0
Answer:
(2,5)

Explanation:
The solution of the system is the order pair that satisfies both equations.
The first given equation is:
x = y - 3
This can be written as:
y = x+3 .......> I

The second given equation is:
x^2 - 6x + 13 = y .........> II

Substitute with I in II and solve for x as follows:
x^2 - 6x + 13 = y
x^2 - 6x + 13 = x + 3
x^2 - 6x + 13 - x - 3 = 0
x^2 - 7x + 10 = 0
(x-5)(x-2) = 0
either x = 5
or x = 2

Substitute with x in equation I to get y as follows:
at x = 5 : y = 5+3 = 8...> first solution is (5,8)
at x = 2 : y = 2+3 = 5...> second solution is (2,5)

katrin2010 [14]3 years ago
4 0
(2, 5) and (5, 8) are the solutions to the system of equations.

We have y=x^2-6x+13 and x=3-y. 

Let's substitute x+3 for y in y=x^2-6x+13. We get (x+3)=x^2-6x+13. Now, factor to solve for x.

0=x^2-7x+10  \\ 0=(x-5)(x-2) \\ x = 2, \ x = 5

Now, substitute each value of x into one of the original equations to solve for y. 

y-3=2  \\ y = 5

y-3=5  \\ y=8
(2,5),(5,8)

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2y/5y cube + 4y square + 6y
timama [110]

Answer:

here down is the answer

(2y/5y)^3+4y^2+6y

8y^3/125y^3 +16y^2+6y

8/125+16y^2+6y

8/125+16y^2+6y=0

16y^2+6y+8/125=0

it is in the form of quadratic equation

formula :

x=(-b+-square root of b^2-4ac) /2a

here a=16,b=6&c=8/125

x=(-b+-square root of b^2-4ac)/2a

x=(-6+-square root of 36-4.09)/2a here 4.09 came by calculation

x=(-6+-31.91)/2

so

x=(-6+31.91)/2 first (+);

x=25.91/2

x=12.955;

x=(-6-31.91)/2 then(-);

x=-37.91/2

x=-18.955 ;

ans is = 12.955&-18.955;

6 0
3 years ago
Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 2 more than 5 times the number o
ch4aika [34]

Mark and Don have 18  and 92 marbles respectively.

<h3>What is the solution of the equation?</h3>

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation. To determine the value of an unknown variable that represents an unknown quantity, equations can be solved.

Let the number of marbles Mark has be x.

According to the question,

Don has (5x+2) marbles.

Total number of marbles=110

Thus, the required equation is:

x+5x+2=110

6x=108

x=108/6

x=18

Mark has 18 marbles.

Don has (5*18+2)=92 marbles.

Learn more about equation here:

brainly.com/question/2972832

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4 0
2 years ago
Unit 1 Lesson 4 Quiz
Arisa [49]

Answer:

Sorry man but I can't see the question : (

Step-by-step explanation:

5 0
3 years ago
Item 4 In a circle with a radius of 36.9 m, an arc is intercepted by a central angle of 8π 5 radians. What is the arc length? Us
leva [86]

Answer:

The arc length is 185.39 meters.

Step-by-step explanation:

The arc length is calculated by the following expression:

\Delta s = \Delta \theta \cdot r

Where:

r - Radius, measured in meters.

\Delta \theta - Central angle, measured in radians.

If r = 36.9\,m and \Delta \theta =\frac{8}{5}\pi\, rad, the arc length, measured in meters, is:

\Delta s = \frac{8}{5}\pi\cdot (36.9\,m)

\Delta s = \frac{8}{5}\cdot (3.14)\cdot (36.9\,m)

\Delta s \approx 185.386\,m

\Delta s \approx 185.39\,m

The arc length is 185.39 meters.

5 0
3 years ago
Question 2 of 10
creativ13 [48]

Answer:

d

Step-by-step explanation:

7 0
3 years ago
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