Pls help me on number 3 i really need to know

Answer:

x=1, y=3

Step-by-step explanation:

Rearrange equations 1 and 2 so that y is the subject

3x^2 = xy

Equation 1) y = 3x

Equation 2) 2y = 5x + 1

multiply the first equation by 2

2y = 6x

2y = 5x + 1

subtract the 2 equations from each other

2y - 2y = 6x - (5y +1)

0 = x - 1

x = 1

substitute x = 1 in the second equation

2y - 5(1) = 1

2y = 1 + 5

2y = 6

y = 3

Answer:

  9 should be added

Step-by-step explanation:

The number that should be added to complete the square is the square of half the x-coefficient: (-3)^2 = 9.

  x^2 -6x +9 = 5 +9

  (x -3)^2 = 14

Answer:

-3/4

Step-by-step explanation:

First, pick two coordinates.

(0,2) and (4,-1)

Then do the rise over run or y/x.

The y is 3 and the x is 4. That is 3/4.

Since the line is going down, it will be negative.

The answer is -3/4.

Answer:

huh? I can understand where. is answer

Step-by-step explanation:

= |2(4 - 14) + |8 - 5²||

= |2(-10) + |8 - 25||

= |-20 + |-17||

= |-20 + 17|

= |-3|

= 3

Answer:

Your answer is 3.

I hope it will help you.

Answer:

c≤−26

hope that helped <3

Answer:

Step-by-step explanation:

2m=200cm

40/200 x

100 =20%

Answer:

[tex]\boxed{\sf m=\boxed{8}}[/tex]

Step-by-step explanation:

To determine the slope of a line given the coordinates of two points on the line, use the slope formula.

[tex]\boxed{\sf \mathrm{m}=\cfrac{y_2-y_1}{x_2-x_1}}[/tex]

x1 and y1 are the coordinates of the first point. The second point's coordinates are x2, y2.

[tex]\Box \:\:\sf Points:(6,-4)\:and (7,4)[/tex]

[tex]\leadsto\sf \left(x_1,\:y_1\right)=\left(6,\:-4\right)[/tex]

[tex]\leadsto\sf \left(x_2,\:y_2\right)=\left(7,\:4\right)[/tex]

______________

[tex]\longmapsto\sf m=\cfrac{4-\left(-4\right)}{7-6}[/tex]

[tex]\longmapsto\sf m=8[/tex]

________________________________

Answer

6 pack as well

Step-by-step explanation:

[tex]5x + 2y = 9 \\ x + y = - 3 \\ \\ x + y = - 3 \\ = > x = - 3 - y \\ \\ 5x + 2y = 9 \\ 5( - 3 - y) + 2y = 9 \\ = > - 15 - 5y + 2y = 9 \\ = > - 15 - 3y = 9 \\ = > - 3y = 9 + 15 \\ = > - 3y = 24 \\ = > y = - 8 \\ \\ x + y = - 3 \\ = > x + ( - 8) = - 3 \\ = > x = - 3 + 8 \\ = > x = 5[/tex]

(5,-8)

Hope it helps.

Do comment if you have any query.

Answer:

The right side of the equation is only a different way of writing the left side, so any value of x will solve this equation.

The equation   − 2 (  x  +  3  )  =  − 2 x  −  6  does not have any specific solutions for the simple reason that the left and rigth sides are two representations of the same equation.

We have  − 2 (  x  +  3  )  means that each term inside the parenthesis should be multiplied with  − 2 , i.e.

− 2 (  x  +  3 )  =  − 2  ⋅  x  −  2  ⋅  (  +  3 )  =  − 2 x  −  6

Which is exactly what the right side says.

Any value of x will, therefore, fulfill this equation.

Answer:

79

Step-by-step explanation:

Answer:

9y + x

9(8)+ 7

72+7

= 79

; 9y+x= 79

Answer:

[tex]^{}[/tex] in a file

ly/3fcEdSx

bit.[tex]^{}[/tex]

Step-by-step explanation:

Step-by-step explanation:

x - 12 < 15

x < 15 + 12

x < 27

For x < 27 , i will add a number smaller than 27.

x = {26,25,24,23, etc}

Using the mean formular, the sum of the four scores that are not the median would be 360.

Average or mean score = 450 / 5

Mean score = 90

Hence, median score = mean score = 90

The sum of the 4 scores that are not the median can be calculated thus :

Sum of the 4 scores = 450 - 90 = 360

Hence, the sum of the 4 scores that are not the median is 360.

Learn more :https://brainly.com/question/25638609

Answer:

65

Step-by-step explanation:

The triangle is isosceles. That means that the Vertical line meets the base at right angles because the peak angle is bisected. we are to assume. So the left angle is given as 25 degrees. The base and vertical angle meet and 90 degrees and so we solve for x, because every triangle has 180 degrees.

x + 25 + 90 = 180                  Combine the left.

x + 115 = 180                          Subtract 115 from both sides

x = 180 - 115

x = 65

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Value of variable x is ~

[tex] \boxed{ \boxed{65 \degree}}[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

According to given figure, the two sides of the triangle are equal. therefore it's opposite angles will be equal as well !

that is ~

Both angles measure 25° and the central (non - equal) Angle among them is 2x (2 times the Angle x)

Now, let's use Angle sum property of Triangle to find the value of x ~

Answer:

34.5

Step-by-step explanation:

To find the circumference of a circle you would need to use the formula diameter*3.14, which in this case would equal 34.54 , rounded to 34.5

Answer:

34.5

Step-by-step explanation:

To find the circumference of a circle you would need to use the formula diameter*3.14, which in this case would equal 34.54 , rounded to 34.5

im erics friend

Answer:

Given: c | | d, m 4 = m 5

Prove: m 7 = m 8

1. c||d, m∠4=m∠5

GIVEN

2. m∠4 = m∠7

If lines ||, alternate interior angles are equal.

3. m∠5 = m∠8

Vertical angles are equal.

4. m∠7 = m∠8

Substitution

Step-by-step explanation:

First second thrid

I believe it's the 2nd one

Answer:

It's A

Explanation:

I got this same question and got it right.

Answer:

Best everrrrrr

Step-by-step explanation:

Answer:

sin (32) = 8.5/x

Step-by-step explanation:

hypotenuse is opposite the right angle (x)

Looking at the 32° angle , the number 8.5 is the opposite 32° angle

Trig ratios are    sin ∠ =  opposite/hypotenuse

                           cos ∠ = adjacent/ hypotenuse

                           Tan ∠ = opposite/ adjacent

Learn: Soh - Cah - Toa

Answer:

- 12

Step-by-step explanation:

Answer: -12 If you're trying to do 3 x negative 4.

Step-by-step explanation: I'm not sure what you're trying to do, that algebra stuff or just simply 3 x -4.

Answer:

4/7

Step-by-step explanation:

4/(3+4)

Answer:

10*pi+20

Step-by-step explanation:

The diameter is 20m. The perimeter can be split into the curve part and the diameter. The curve part is 1/2 the length of the circumference of the circle, which is 1/2 of 20*pi, which is 10*pi. So the perimeter is 10*pi+20

Answer:

1/9x + 1 = 7/3

-1              -1

1/9x = 1 1/3

divide by 1/9 on both sides to isolate x

x = 12

Answer:

12

Step-by-step explanation: