Solve the system by the elimination method.
2x + y - 4 = 0
2x - y - 4 = 0
When you eliminate y, what is the resulting equation?

A.x = 0
B.4x = -8
C.4x = 8

Solve The System By The Elimination Method. 2x + Y - 4 = 02x - Y - 4 = 0 When You Eliminate Y, What Is

Answers

Answer 1

Answer: C is correct, 4x=8

Step-by-step explanation:

You will add the two equations...

4x-8=0

Now you need to move the -8 over, which reverses its sign to positive.

4x=8


Related Questions

6) A cereal box has the following dimensions:
height of 12 inches and width of 2 inches. If
the volume of the box is 192 cubic inches.
find the length of the box.
Hint: V = lwh

Answers

Answer:

8 inches

Step-by-step explanation:

The problem gives us a basic formula, the volume formula for a rectangular prism. All we have to do is use this formula, plug in all the values that are given, and solve for the unknown value.

[tex]V = lwh[/tex]

[tex]192 = l(12)(2)[/tex]

[tex]192 = 24l[/tex]

From here, all we need to do is divide 24 from both sides of the equation, since what you do to one side of the equation you must do to the other!

[tex]8 = l[/tex]

The length of the box will thus be 8 inches.

it is going to be 8 inches                                                                                                    Hope it helps !!!!!

Simplify 8x + 9x completely.

Answers

Answer:

[tex]17x[/tex]

Step-by-step explanation:

[tex]8x + 9x = 17x[/tex]

Final answer:

To simplify the expression 8x + 9x, you combine the like terms by adding the coefficients. The result is 17x.

Explanation:

The process involved in simplifying an equation like this is known as combining like terms. In this example, the terms are 8x and 9x. Because they both contain the same variable, x, you can combine them.

To perform this operation, you add the coefficients (the numbers in front of the variable). In this case, the coefficients are 8 and 9. So, 8x + 9x simplifies to 17x.

Therefore, the simplified form of the equation 8x + 9x is 17x.

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what is the average rate of change for this quadratic function for the interval from x=6 to x=8?

Answers

8 - 6 = 2

The rate of change must be 2

Find g(1) if g(x) = x 2 + 1.

Answers

Answer:

[tex]\large\boxed{g(1)=2}[/tex]

Step-by-step explanation:

[tex]g(x)=x^2+1\\\\g(1)-\text{put x = 1 to the equation of the function}\\\\g(1)=1^1+1=1+1=2[/tex]

Similiar triangles can have congruent angles and sides

Answers

Answer:

The statement is true.

Step-by-step explanation:

The statement is true.

This is true. Since they could be considered similar even when they are congruent, since in similar triangles, the measurements are proportional. In congruent triangles, this proportion is just one. or 1/1

Hope this helps!

The cost of performance tickets and beverages for a family of four can be modeled using the equation 4x + 12 = 48, where x
represents the cost of a ticket. How much is one ticket?
$3.00
$4.00
$9.00
$15.00

Answers

Answer:

C) $9.00

Step-by-step explanation:

You're trying to find the value of x. 4x + 12 = 48   Subtract 12 from both sides to get:4x = 36     Then, divide each side by 4 to get:x = 9  

For this case we have that the cost of a ticket is given by the variable "x". We have the following equation:

[tex]4x + 12 = 48[/tex]

By clearing "x" we have:

We subtract 12 on both sides of the equation:

[tex]4x = 48-12\\4x = 36[/tex]

Dividing between 4 on both sides of the equation:

[tex]x = \frac {36} {4}\\x = 9[/tex]

Then, a ticket costs $ 9.00

Answer:

Option C

Which expression is equivalent to..? Assume

Answers

Answer:

The equivalent ratio of (3m⁻²n)⁻³/6mn⁻² = m⁵/2n

Step-by-step explanation:

Points to remember

Identities

xᵃ * xᵇ = x⁽ᵃ ⁺ ᵇ⁾

xᵃ/xᵇ = x⁽ᵃ ⁻ ᵇ⁾

(xᵃ)ᵇ = xᵃᵇ

x⁻ᵃ = 1/xᵃ

To find the equivalent ratio of (3m⁻²n)⁻³/6mn⁻²

By using identities,

(3m⁻²n)⁻³ = 3m⁶n⁻³

(3m⁻²n)⁻³/6mn⁻² = 3m⁶n⁻³/6mn⁻²

 =  3m⁽⁶⁻¹⁾n⁽⁻³ ⁻ ⁻²⁾/6

 = m⁵n⁻¹/2

 = m⁵/2n

Therefore the equivalent ratio of (3m⁻²n)⁻³/6mn⁻² = m⁵/2n

21 POINTS!! What is the solution to the system of equations below?



y = -1/3x + 6 and x = –6

Answers

Answer:

y=8

Step-by-step explanation:

[tex]y = - \frac{1}{3} ( - 6) + 6 \\ y = 8[/tex]

The answer would be y=8

Find the value of x for which the lines are parallel.​

Answers

Answer: 64 °

64-1=63.

The parallel lines make the angles equal so they have the same measurement.

Solve the system of equations below. Enter your answer in the boxes.
8a + 12b = 92
6a – 4b = 4

Answers

The solution of the system of equations is a = 4 and b = 5.

What is the system of equations?

A system of equations is a set of two or more equations that you deal with at one time.

The given system of equations are;

8a + 12b = 92

6a – 4b = 4

From equation 1

[tex]\rm 8a + 12b = 92\\\\ 8a=92-12b\\\\a=\dfrac{92-12b}{8}[/tex]

Substitute the value of a in the equation 2

[tex]\rm 6a-4b=4\\\\6\times \dfrac{92-12b}{8}-4b=4\\\\3\times \dfrac{92-12b}{4}-4b=4\\\\ 276-36b-16b=16\\\\-52b=16-276\\\\-52b=-260\\\\b=\dfrac{-260}{-52}\\\\b=5[/tex]

Substitute the value of b in the equation 2

[tex]\rm 6a – 4b = 4\\\\6a-4\times 5=4\\\\6a-20=4\\\\6a=4+20\\\\6a=24\\\\a=\dfrac{24}{6}\\\\a=4[/tex]

Hence, the solution of the system of equations is a = 4 and b = 5.

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If p(x)=2x^2-4x and q(x) = x-3, what is (p o q)(x)

Answers

Answer:

2x² - 16x + 30

Step-by-step explanation:

To evaluate (p ○ q)(x)

Substitute x = q(x) into p(x)

2(x - 3)² - 4(x - 3)

= 2(x² - 6x + 9) - 4x + 12

= 2x² - 12x + 18 - 4x + 12

= 2x² - 16x + 30


Use the number line to help you answer the question.
Which statements are true? Check all that apply.
–4 < –8
|–4| < |–8|
|–5| > 1
–5 > |1|
|–2| = |2|

Answers

Answer:

|–4| < |–8|, |–5| > 1, |–2| = |2|

Step-by-step explanation:

Answer:

B, C, and E.

Step-by-step explanation:

–4 < –8

|–4| < |–8|  

|–5| > 1

–5 > |1|

|–2| = |2|

Absolute Value  Assignment

Understanding Absolute Value and Magnitude

Witch represents the inverse of the function f(x)=1/4x-12

Answers

Answer:

y=4x+48

Step-by-step explanation:

The Door Company produces door seals. Its 9' by 10' seal costs $480 to produce. The markup rate is 75% of cost. What is the price tag the company will put on this seal?

A) $840
B)$600
C)$475
D)$120

Answers

.75 times 480=360
360+480= 840
75%=3/4
$480/4=$120
$120*3=$360
$480+$360=$840

Please mark me brainliest

Evaluate |-10| - |-8|

Answers

The absolute value of any number is positive. Absolute 10 minus absolute 8 is 2

Answer:2

Step-by-step explanation:

the bars make the integers absolute value so it would be 10-8 when you drop the bars making the answer 2

Find the distance between the given points.

E(-6, 4) and F(-12, 4)

Distance =

6
8
18

Answers

Answer:

d = 6

Step-by-step explanation:

d = sqrt((x2 - x1)^2 + (y2 - y1)^2 )

Givens

x2 = -12

x1   = -6

y2 = 4

y1 = 4

Solution

d = sqrt (-12 - - 6)^2 + (4 - 4)^2 )

d = sqrt ( ( - 6)^2 + 0)

d = sqrt(36)

d = 6

Answer:

6

Step-by-step explanation:

Calculate the distance (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 6, 4) and (x₂, y₂ ) = (- 12, 4)

d = [tex]\sqrt{(-12+6)^2+(4-4)^2}[/tex]

  = [tex]\sqrt{(-6)^2+0^2}[/tex] = [tex]\sqrt{36}[/tex] = 6

What is the general form of the equation of a circle with center at (a, b) and radius of length m?

Answers

Answer:

bru thats not the answer^

Step-by-step explanation:

3[–x + (2 x + 1)] = x – 1 solve for x

Answers

Hey there! :)

3[-x + (2x + 1)] = x - 1

Simplify the parenthesis!

3[-x + 2x + 1]  =x - 1

Add like terms.

3[x + 1] = x - 1

Simplify!

3x + 3 = x - 1

Subtract 1x from both sides.

3x + 3 - 1x = x - 1 - 1x

Simplify.

2x + 3 = -1

Subtract 3 from both sides.

2x = -4

Divide both sides by 2.

2x ÷ 2 = -4 ÷ 2

Simplify.

x = -2

~Hope I helped! :)

Explain why the solution to 3r=2 must be less than 1

Answers

Answer:

see below

Step-by-step explanation:

3r=2

We know that r must be less than 1 because we are multiplying 3 by a number and getting 2

Taking a larger number and multiplying by r and getting a smaller number means the number must be less than 1

Divide each side by 3

3r/3 = 2/3

r = 2/3

2/3 is less than 1

Hello

Good Luck

Goodbye ♥

Writing Linear Equations
Instruction Active
Writing an Equation Given Two Points on the Line
Write the equation of the line that passes through the points (7,-4) and (-1,3), first in point-slope form, and then in
slope-intercept form.
The slope of the line is
When the point (7.-4) is used, the point-slope form of the line is
The slope-intercept form of the line is

Answers

Answer:

[tex]\text{The slope:}\ m=-\dfrac{7}{8}\\\\\text{The point-slope form:}\ y+4=-\dfrac{7}{8}(x-7)\\\\\text{The slope-intercept form:}\ y=-\dfrac{7}{8}x+\dfrac{17}{8}[/tex]

Step-by-step explanation:

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

The point-slope form of an equation of a line:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

The formula of a slope:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have two points (7, -4) amd (-1, 3).

Calculate the slope:

[tex]m=\dfrac{3-(-4)}{-1-7}=\dfrac{7}{-8}=-\dfrac{7}{8}[/tex]

The point-slope form of an equation of a line:

[tex]y-(-4)=-\dfrac{7}{8}(x-7)\\\\y+4=-\dfrac{7}{8}(x-7)[/tex]

Convert to the slope-intercept form:

[tex]y+4=-\dfrac{7}{8}(x-7)[/tex]        use the distributive property

[tex]y+4=-\dfrac{7}{8}x+\dfrac{49}{8}[/tex]     subtract 4 = 32/8 from both sides

[tex]y=-\dfrac{7}{8}x+\dfrac{17}{8}[/tex]

The equation of the line passing through (7,-4) and (-1,3) has a slope of -7/8, the point-slope form is y + 4 = -7/8(x - 7), and the slope-intercept form is y = -7/8x + 17/8.

To write the equation of the line that passes through the points (7,-4) and (-1,3), we first need to calculate the slope of the line using the formula m = (y2 - y1) / (x2 - x1).

Applying this to our points, we get m = (3 - (-4)) / (-1 - 7), which simplifies to m = 7 / -8 = -7/8. Now, using the point-slope form y - y1 = m(x - x1), and the point (7, -4), we can write the equation as y - (-4) = -7/8(x - 7).

Next, to convert this to slope-intercept form, we simplify the point-slope equation to solve for y: y + 4 = -7/8x + 49/8, and then subtract 4 (or 32/8) from both sides to get y = -7/8x + 17/8. This is our slope-intercept form, where -7/8 is the slope, and 17/8 is the y-intercept.

What is the product of (3a + 2)(4a^2 – 2a + 9)

Answers

Answer:

[tex]\large\boxed{(3a+2)(4a^2-2a+9)=12a^3+2a^2+23a+18}[/tex]

Step-by-step explanation:

[tex](3a+2)(4a^2-2a+9)\qquad\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(3a)(4a^2)+(3a)(-2a)+(3a)(9)+(2)(4a^2)+(2)(-2a)+(2)(9)\\\\=12a^3-6a^2+27a+8a^2-4a+18\qquad\text{combine like terms}\\\\=12a^3+(-6a^2+8a^2)+(27a-4a)+18\\\\=12a^3+2a^2+23a+18[/tex]

A number w increased by 7 is less than 25. Translate the sentence into an inequality​

Answers

Answer:

w+7<26

Step-by-step explanation:

number w increased by 7 means w+7

ls less than 25 means <25

So we have w+7<26

What is the solution of the equation 92x = 6? Round your answer to the nearest ten-thousandth.

Answers

Answer:

The solution of the equation 92x = 6 is x= 0.065

Step-by-step explanation:

We need to solve the equation 92x = 6 and find the value of x.

Given: 92x = 6

Divide both sides of the equation with 92

92x/92 = 6/92

x = 3/46

x = 0.065

So, the solution of the equation 92x = 6 is x= 0.065

8. Suppose the curve y = x4 + ax3 + bx2 + cx + d has a tangent line when
x = 0 with equation y = 2x + 1, and a tangent line when x = 1 with equation
y= 2 – 3x. Find the values of a, b, c and d.

Answers

Answer:

a=1, b=-6, c=2, d=1

Step-by-step explanation:

You are given the function

[tex]y=x^4+ax^3+bx^2+cx+d[/tex]

Find the derivative:

[tex]y'=4x^3+3ax^2+2bx+c[/tex]

The curve has a tangent line when x = 0 with equation y = 2x + 1, so

[tex]y'(0)=2\\ \\y(0)=1[/tex]

Hence,

[tex]y'(0)=4\cdot 0^3+3a\cdot 0^2+2b\cdot 0+c=2\Rightarrow c=2\\ \\y(0)=0^4+a\cdot 0^3+b\cdot 0^2+2\cdot 0+d=1\Rightarrow d=1[/tex]

The curve has a tangent line when x = 1 with equation y = -3x + 2, so

[tex]y'(1)=-3\\ \\y(1)=-3+2=-1[/tex]

So,

[tex]y'(1)=4\cdot 1^3+3a\cdot 1^2+2b\cdot 1+c=4+3a+2b+2=-3\Rightarrow 3a+2b=-9\\ \\y(1)=1^4+a\cdot 1^3+b\cdot 1^2+2\cdot 1+d=1+a+b+2+1=-1\Rightarrow a+b=-5[/tex]

From the second equation, a=-5-b, substitute it into the first one:

[tex]3(-5-b)+2b=-9\\ \\-15-3b+2b=-9\\ \\-b=-9+15\\ \\-b=6\\ \\b=-6\\ \\a=-5-b=-5-(-6)=-5+6=1[/tex]

Find the output y, when input x is 6

Answers

Answer:

0

Step-by-step explanation:

Final answer:

To find the output y for an input x of 6, assuming a linear relationship based on a derivative example provided, we use the equation y = 3x + 6. Substituting x with 6 gives us y = 24.

Explanation:

The question requires us to find the output y when the input x is 6. The equation provided in the excerpts can be interpreted in many ways due to lack of clarity in the given information. However, a linear function example is given by dy/dx = 6+3x, where the derivative suggests an initial value of 6 increasing by 3 with each unit increase in x. If we assume a linear relationship y = mx + b, we can use the pattern in the derivative example and set the slope m as 3 and the y-intercept b as 6. This yields the equation y = 3x + 6. When x is 6, the output y is calculated as y = 3(6) + 6 = 18 + 6 = 24.

Remember, the equation provided in the tutorial only applies if we assume a linear relationship based on the derivative example mentioned. It is important to have the exact equation or context to provide the precise output y.

Jane is cooking beans and rice for dinner
tonight. She has 4 cans of black beans,
6 cans of red beans, and 3 cans of
garbanzo beans in her cupboard. If she
grabs a can of beans without looking at the
label, what is the probability of her making
black beans and rice for dinner?

Answers

Answer:

4/13

Step-by-step explanation:

6+3+4 =13

4/13

Answer:

4/13

Step-by-step explanation:

P( blackbeans) = number of cans of black beans

                           ----------------------------------------------

                           total cans

                   =   4

                      -------

                       ( 4+6+3)

              = 4

                 -----

                 13

2. y = -x + 3
x+y = -1

how many solutions ​

Answers

Answer:

Step-by-step explanation:

y=-x+3

x+y=-1

y=-x+3

y=-x-1

-x+3=-x-1

add x to both sides

3=-1

no solutions

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail eight times Angelo says he wrote a total of 8/4 miles Teresa says he is wrong and that he actually rode 2 miles who is correct use words and drawings to explain how you know

Answers

They are both correct because, Angelo write the answer when it is not simplified, when Teresa’s answer is simplified

What is the next term of the geometric sequence?
40/27,20/9,10/3

Answers

Answer:

5

Step-by-step explanation:

By trial and error, we see that we can multiply by 3/2 every time to continue the sequence! So multiplying 10/3 by 3/2, we get 5. So 5 is the next term of the geometric sequence.

A. 15 degrees

B. 45 degrees

C. 30 degrees

D. 60 degrees

Answers

Answer: C. 30 degrees

Step-by-step explanation:

By definition, an hexagon is a polygon with six sides.

The sum of the interior angles of an hexagon is 720 degrees.

Based on this, the measure of eac interior angle is:

[tex]interior\ angle=\frac{720\°}{6}=120\°[/tex]

Therefore, the measure of ∠1 is:

 [tex]\angle 1=\frac{120\°}{2}\\\\ \angle 1=60\°[/tex]

So, to find the angle ∠2, you can divide ∠1 by 2:

[tex]\angle 2=\frac{60\°}{2}\\\\ \angle 2=30\°[/tex]

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