Lollllll I need help !

Answer:

(-2, -6)

Step-by-step explanation:

Given the simultaneous equation

3x-y=0 ... 1

2x+y=-10 ... 2

Add both equations to eliminate y

3x + 2x = 0 - 10

5x = -10

x = -10/5

x = -2

Substitute x = -2 into 1

3(-2)- y = 0

-6 - y = 0

-y = 0+ 6

-y = 6

y = -6

Hence the coordinate (x, y) is (-2, -6)

Answer:

1) w = x+2

2) L = 12

3) w = 9

4) A = 108

Step-by-step explanation:

The rectangle has a length of x+5 and a perimeter of 4x+14.

Perimeter of a rectangle is given by all the lengths plus all the widths, ie 2*width and 2*length.

Perimeter = 2w + 2L

4x+14 = 2w + 2(x+5)

4x + 14 - 2x - 10 = 2w

w = 2x + 7 - x - 5

w = x+2      Width of the rectangle in terms of x.

If perimeter of rectangle is 42, what is the length?

Perimeter = 42 = 4x+14

28 = 4x

x = 7

L = x+5

L = 7+5

L = 12

If perimeter of rectangle is 42, what is the width?

Perimeter = 42 = 4x+14

28 = 4x

x = 7

w = x+2

w = 7+2

w = 9

Area equals length times width. What is the area of the rectangle.

A = L*w

A = 12*9

A = 108

Answer:

(-infinity,+infinity)

Step-by-step explanation:

Domain refers to the x-axis. So if we look from left to right along the x-axis we could conclude that the function will go infinitley from negative infinite to positive infinity.

Answer:

he would pay 503.75 every month

Step-by-step explanation:

Answer:

7y

Step-by-step explanation:

7(x + y) - 7x =

= 7x + 7y - 7x

= 7y

Answer:

7y

Step-by-step explanation:

7(x+y)-7x=7x+7y-7x=7y

Hope this helps :)

Answer:

9.77 metros

Step-by-step explanation:

Ay que usar sine, mira el problema en la photo

Answer: 1,24. 2,12. 3,8. 4,6.

Step-by-step explanation:

If you change all of these factors to negatives, the pairs would also multiply together to produce positive 24.

Example: -1 x -24 = 24

-2 x -12 = 24, -3 x - 8 = 24.........

Answer:

The answer is E) 1

Step-by-step explanation:

can you make me brainliest please

Answer:

This is complicated

Step-by-step explanation:

UHM

Answer:    The answer is either letter A or letter C

home / math / slope calculator

Slope Calculator

By definition, the slope or gradient of a line describes its steepness, incline, or grade.

Where

m — slope

θ — angle of incline

If the 2 Points are Known

Result

Slope (m) =  

ΔY

ΔX

=  

-1

5

= -0.2

θ =  

arctan( ΔY ) + 360°

ΔX

= 348.69006752598°

ΔX = 5 – -5 = 10

ΔY = -3 – -1 = -2

Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186

Equation of the line:

y = -0.2x – 2

or

y =  

- 1 x

5

– -2

When x=0, y = -2

When y=0, x = -10

...............................................................................................................................................

home / math / slope calculator

Slope Calculator

By definition, the slope or gradient of a line describes its steepness, incline, or grade.

Where

m — slope

θ — angle of incline

If the 2 Points are Known

Result

Slope (m) =  

ΔY

ΔX

=  

5

-1

= -5

θ =  

arctan( ΔY ) + 180°

ΔX

= 101.30993247402°

ΔX = -3 – -1 = -2

ΔY = 5 – -5 = 10

Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186

Equation of the line:

y = -5x – 10

When x=0, y = -10

When y=0, x = -2

...............................................................................................................................................

Input Data :

Point A  

(

x

A

,

y

A

)

= (3, 2)

Point B  

(

x

B

,

y

B

)

= (7, 10)

Objective :

Find the slope of a line that passes through points A and B.

Formula :

Slope

m

=

y

B

−

y

A

x

B

−

x

A

Solution:

Slope

m

=

10

−

2

7

−

3

=

8

4

m = 2

...............................................................................................................................................

Input Data :

Point A  

(

x

A

,

y

A

)

= (3, 2)

Point B  

(

x

B

,

y

B

)

= (7, 10)

Objective :

Find the slope of a line that passes through points A and B.

Formula :

Slope

m

=

y

B

−

y

A

x

B

−

x

A

Solution:

Slope

m

=

10

−

2

7

−

3

=

8

4

m = 2

Step-by-step explanation:    This is the picture, I graphed it

Center: (0, 0)

Angle: 0 rad

Opacity: 1

Width: 10

Height: 6.8

Answer:

Three gallons will be enough to make 128 servings.

Step-by-step explanation:

In Three gallons there are 64 cups. if 5 cups makes 10 servings, that is 1/2 cup per serving. So 64 cups will make 128 servings.

Answer:

all quadrilaterals have 4 sides

Pls mark as brainliest

Answer:

C

Step-by-step explanation:

Because all quadrilaterals have four sides. Like for example a square and a parallelogram both have 4 sides.

Answer: Angle VU is 44 degrees

Step-by-step explanation:

Answer:

2x+3=4x-7

4x-2x=-7-3

2x=-10

X=-5

Answer:

Bushes are $9.

Bonsai trees are $32.

Step-by-step explanation:

Bushes are b and bonsai trees are t.

15b + 8t = $391

9b + 5t = $241

15b + 8t = $391 × 3 and 9b + 5t = $241 × 5

= 45b + 24t = $1173 and 45b + 25t = $1205

(45b + 24t = $1173) - (45b + 25t = $1205)

t = 1205 - 1173

t = $32

Apply to 15b + 8t = $391.

15b + 32 × 8 = $391

15b = $391 = 32 × 8

15b = $391 - 256

15b = $135

x = ($135 ÷ 15) = $9

Answer:

8 2/3

Step-by-step explanation:

First, we turn 6 1/2 into an improper fraction, which is 13/2. Now, we can write this out as: 13/2  divided by 3/4. When dividing fractions, you reverse the sign to multiplication and you flip the numerator and the denominator of the second number. So, in this case, it would be 13/2 TIMES 4/3 which now we can do! 13*4 is 52 and 2*3 is 6. 52/6 is a number we can simplify. We can divide out a 2, so 52/2 is 26 and 6/2 is 3. 26/3 can be put into a mixed number. 3 goes into 26, 8 times and there is a 2 left over. So our final answer is 6 2/3.

Answer:

The smaller number is 12 & greater number is 15.

Answer:

12

Step-by-step explanation:

let the numbers be x and y and x>y

x-y=3

x+y=27

add

2x=30

x=30/2=15

15+y=27

y=27-15=12

Answer:

its a quiz you might get banned

Step-by-step explanation:

Answer:

Her starting average was 66

it decreased by 7

her final average was 71

Step-by-step explanation:

i think

Answer:

a. 78

b. decreased by 7 points

c. 83 points

Step-by-step explanation:

Answer:

-12x = -60

Step-by-step explanation:

-12x = -79+19

-12x = -60

Answer:2 inside 3 dogs 3 inside 6

Step-by-step explanation:

Answer:

2/3 acres per hour.

Answer:

0.25

Step-by-step explanation:

0.25 x 24 = 6

Answer:

x = -3

Step-by-step explanation:

24 = 12 - 4x

24 - 12 = -4x

12 = -4x

12/-4 = x

x = -3

Answer:

x=-3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

24=12−4x

24=12+−4x

24=−4x+12

Step 2: Flip the equation.

−4x+12=24

Step 3: Subtract 12 from both sides.

−4x+12−12=24−12

−4x=12

Step 4: Divide both sides by -4.

−4x

−4

=

12

−4

x=−3

Answer:

Sample third quartile appears to be an unbiased estimator of the population third quartile.

Step-by-step explanation:

khan