Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system.

X+y=4

{

X-y=2

Answer:

One solution at (-4, -22)

Step-by-step explanation:

5x - y = 2

y = 5x - 2 --(1)

2x - 0.5y = 3 --(2)

sub (1) into (2):

2x - 0.5(5x - 2) = 3

2x - 2.5x + 1 = 3

-0.5x = 2

x = -4

when x = -4, y = 5(-4) - 2 = -22

The nature of the solution set to the system of equations are,

⇒ One solution at (-4,-22).

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The system of equations are,

5x - y = 2   .. (i)

2x - 0.5y = 3  .. (ii)

Now, We can simplify as;

From (i);

5x - y = 2

y = 5x - 2

Put above value in (ii);

2x - 0.5 (5x -2) = 3

2x - 2.5x + 1 = 3

- 0.5x = 2

x = - 4

From (i);

y = 5 × - 4 - 2

y = - 20 - 2

y = - 22

Thus, The nature of the solution set to the system of equations are,

⇒ One solution at (-4,-22).

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ7

Answer:

B. 14

Step-by-step explanation:

okay we are going to place 3 where the x variable is and -2 where the y variable is in the equation 2 x2 - y

2 (3*2) - (-2)

the equation now looks like this:

2(6) - (-2)

Since the subtraction sign is in front of the negative number the negative number will turn positive making the equation look like this:

2(6) + 2

we are now going to do the order of operations by multiplying 6 by 2 before adding 2:

6 * 2 = 12 + 2 = 14

So the equation 2 x2 - y = 14

Answer:

3

left

Step-by-step explanation:

1000/36=0.036

hope this helps

Answer:

C.

F.

   Please mark brainliest hit the crown thanks :)

Answer:

The answer is A because a number on it's own is a constant (30) and a number with a variable is a coefficient (12h)

Answer:

-28

Step-by-step explanation:

the four number are -28, -29, -30, and -31. they are all consecutive meaning all before or after the previous number. The sum is -118 making then all negative so when you add all the negative numbers you get and even bigger negative number. it is -28 because -28 is closest to 0.

Answer:

4.71 x 10^4

I did maf

Answer: It should be 4.71 x 104.

Answer:9

Step-by-step explanation:

-2x+8=-10

-2x=-18

X=9

Answer:

9

Step-by-step explanation:

Subtract

8

8

8

from both sides of the equation

−

2

+

8

=

−

1

0

-2x+8=-10

−2x+8=−10

−

2

+

8

−

8

=

−

1

0

−

8

-2x+8{\color{#c92786}{-8}}=-10{\color{#c92786}{-8}}

−2x+8−8=−10−8

2

Simplify

3

Divide both sides of the equation by the same term

4

Simplify

Solution

=

9Subtract

8

8

8

from both sides of the equation

−

2

+

8

=

−

1

0

-2x+8=-10

−2x+8=−10

−

2

+

8

−

8

=

−

1

0

−

8

-2x+8{\color{#c92786}{-8}}=-10{\color{#c92786}{-8}}

−2x+8−8=−10−8

2

Simplify

3

Divide both sides of the equation by the same term

4

Simplify

Solution

=

9

Answer:

Sean's sum divided by Julie's sum is 2.

Step-by-step explanation:

The sum of an arithmetic sequence is:

[tex]\frac{n}{2}(2a+(n-1)d)[/tex]

In Sean's sequence, a = 2, n = 250, and d = 2

In Julie's sequence, a = 1, n = 250, and d = 2

[tex]\frac{\frac{250}{2}(2(2)+(250-1)2)}{\frac{250}{2}(2(1)+(250-1)1)}\\= 2[/tex]

The Sean's sum divided by Julie's sum gives the 2.

An arithmetic sequence is sequence of integers with its adjacent terms differing with one common difference.

If the initial term of a sequence is 'a' and the common difference is of 'd', then we have the arithmetic sequence as:

a, a + d, a +  2d, ... , a + (n+1)d, ...

Its nth term is ; T_n = a + (n-1)d

(for all positive integer values of n)

And thus, the common difference is T_{n+1} - T_n for all positive integer values of n

The sum of an arithmetic sequence is;

[tex]= \dfrac{n}{2}[2a + (n-1)d ][/tex]

In Sean's sequence, a = 2, n = 250, and d = 2

[tex]= \dfrac{250}{2}[2(2) + (250-1)2 ]\\[/tex]

In Julie's sequence, a = 1, n = 250, and d = 2 then;

[tex]= \dfrac{250}{2}[2(1) + (250-1)2 ]\\[/tex]

Therefore, the Sean's sum divided by Julie's sum gives the 2.

Learn more about arithmetic sequence here:

https://brainly.com/question/3702506

#SPJ2

Answer:

tje answer is (2,-1) to this

Answer:

-8/9z - 3

Step-by-step explanation:

Answer:

(-8/9)z-3=(blank)

Step-by-step explanation:

((5/9)-(6/9)-(7/9))z+3-6= (-8/9)z-3

you get -8/9 by taking 5 and subtracting the 6 and 7 from it since they have the same denominators

Answer c

Step-by-step explanation:

Answer:

D. 75%

Step-by-step explanation:

Divide 69 by 92 and you will get 0.75, move the decimal to the right two times. and there is your answer.

Answer:

y=3x-7

step by step explaination:

Answer:

not an answer but nice pfp

Answer:

65/66

Step-by-step explanation:

Find the reciprocal of the second number (11/13), which you find by flipping the top and bottom number so it would be 13/11. Now multiply the top two numbers which are 5 and 13, that equals 65. Multiply the bottom numbers, 6 and eleven which is 66. That is how you get 65 over 66.

Answer:

65/66

Step-by-step explanation:

5/6 * 13/11 = 65/66

Answer:

ms baker

Step-by-step explanation:

9/10 = 90%

10/12= 83

Answer:

Ms.Baker

Step-by-step explanation:

9/10 > 10/12 or 0.9 > 0.833333. Next time try to make equivalent fractions with the same denominator or convert to decimal then compare.

Answer:

1 question: Question 8 (1 point) (03.02 MC) Given the function f(x) = 2(x + 6), find x if f(x) = 22. (1 point) 56 Ob Сл. 38

Step-by-step explanation:

Answer:

9.5 = y

Step-by-step explanation:

You have to use the cosine function equation.

cos(38) = [tex]\frac{y}{12}[/tex]

Multiply 12 on both sides.

12cos(38) = y

Solve.

9.46 = y

Answer:

9.5

Step-by-step explanation:

y is the adjacent side of the given 38 degree angle. You are given the hypotenuse of right angle triangle. So the trig function that you need to use is the Cosine

Cos(38) = y / 12

multiply both sides by 12

12*cos(38) = 12*y/12

12*cos(38) = y

12*0.7880= y

y =9.456

24kx = 6

kx = 6/24

kx = 1/4

x = 1/4/k

x = 1/4k

A) X = 1/4k or the first option.

Answer:

4

Step-by-step explanation:

Define coefficient:

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4xy).

Hope this helped.

Answer:1

Step-by-step explanation: substitute all the corresponding terms so you get, 16=4(3+b2)

Then you multiply and get 16=12+4b2 then subtract 12 from both sides to get 4=4b2 and then divided both sides by 4 and you get 1=b2

Answer:1

Step-by-step explanation: A = h(b 1+b 2)

16=4(3+b2)

16/4=3+b2

4=3+b2

B2 =4-3=1

Answer:

The lines below are parallel. If the slope of the solid line is –3

Step-by-step explanation:

Got the question wrong cause the other answer here is the correct answer directly from Delta Math.

(-7, -3)

Enjoy and Happy Holidays!

Answer:

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee hi

Step-by-step explanation:

Answer:

The answer is 2.

Step-by-step explanation:

hope that helps

3w=6

divide by 3 both side

3w÷3=6÷3

W=2

9514 1404 393

Answer:

  3) y = -1

  5) x = -14

Step-by-step explanation:

The first step is to recognize that the equation describes a vertical line in problem 3 and a horizontal line in problem 5. The perpendicular to a vertical line is a horizontal line, and vice versa.

__

3. To make the desired horizontal line go through the point (-8, -1) the y-value of the line must match that of the point:

  y = -1

__

5. To make the desired vertical line go through the point (-14, 81), the x-value of the line must match that of the point:

  x = -14

Answer:

-0.02, -0.15, -0.2, -1.2

Step-by-step explanation:

The closer a negative number is to 0, the greater it is.

Answer:

-0.15,-0.02,-0.2,-1.2

I hope this helps

Answer:

5.2

Step-by-step explanation:

√27 = 5.1962 (5s.f.) = 5.2 (2s.f.)

Answer:

i hope 5.2 is the answer

Step-by-step explanation:

i m not sure