Select all of the following functions that are quadratic.

y = 2x2

3 = 2x2 – 8

y = –2 + 2x – 8

y + 3x = 2x2 – 8

y +3x2 = 2x + 3x2 – 8

Answers

Answer 1

Answer:

y = 2x2

y + 3x = 2x2 – 8

Step-by-step explanation:

Answer 2

The equations that are quadratic in nature are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

What is a quadratic equation?

A quadratic equation is a equation that is of the form -

y = f{x} = ax² + bx + c.

Given are the set of equations.

A quadratic equation is a equation of degree 2. The equation with degree 2 are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

Therefore, the equations that are quadratic in nature are -

y = 2x²2x² - 8 - 3 = 0y = 2x² - 3x - 8

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Related Questions

Solve -9(t - 2) = 4(1-15).

Answers

Answer:

t = 74 / 9

Step-by-step explanation:

-9(t - 2) = 4(1 - 15)

-9t + 18 = 4 - 60

-9t + 18 = -56

 -18      -18

-9t = -74

/-9     /-9

t = 74 / 9

t = 8.22

Answer:

t = 74 / 9 ~= 8.222

Step-by-step explanation:

-9 ( t - 2 ) = 4 ( 1 - 15 )

-9 * t + -9 * -2 = 4 * 1 + 4 * -15

-9t + 18 = 4 + -60

-9t + 18 = -56

-9t = -56 + -18

-9t = -74

t = 74 / 9

Alternatively:

-9 ( t - 2 ) = 4 ( 1 - 15 )

-9 * t + -9 * -2 = 4 ( - 14 )

-9t + 18 = -56

-9t = -56 + -18

-9t = -74

t = 74 /9

Cheers.

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. In Part II, you will be comparing an inflated football with a deflated one. Use the drop-down menus to complete the sentences and identify the independent and dependent variables. In Part II, the independent variable, the one that is intentionally manipulated, is . (mass,volume,material,density) In Part II, the dependent variable, the one that you measure the response in, is . (mass,volume,matierl,density)

Answers

Answer:the first one is volume the second one is density

Step-by-step explanation:I took the test

Answer:

volume and density

Step-by-step explanation:

Find the perimeter of the polygon with the given vertices Round your answer to the nearest hundredth ​

Answers

Answer:

16.93 units

Step-by-step explanation:

Length of a segment having extreme ends [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by the formula,

d = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

ML = [tex]\sqrt{(4-1)^2+(0-4)^2}[/tex]

     = 5 units

LP = [tex]\sqrt{(1+1)^2+(4+2)^2}[/tex]

    = [tex]\sqrt{40}[/tex] ≈ 6.32 units

PN = [tex]\sqrt{(-1-2)^2+(-2-0)^2}[/tex]

     = [tex]\sqrt{13}[/tex]

     ≈ 3.61 units

NM = [tex]\sqrt{(4-2)^2+(0)^2}[/tex]

      = 2 units

Perimeter of the polygon MLPN = ML + LP + PN + NM

                                                     = 5 + 6.32 + 3.61 + 2

                                                     = 16.93 units

Add and write the result in the form a+bi. a. (4 + 2i) + (-6 - 7i)

Answers

Answer:

- 2 - 5i

Step-by-step explanation:

Given

(4 + 2i) + (- 6 - 7i) ← remove the parenthesis

= 4 + 2i - 6 - 7i ← collect like terms

= - 2 - 5i

The value of the expression is
_____?

Answers

Answer:

the answer is 86!

hope this helped

Answer:

the answer to your question is 86

01:38:56
What is the scale factor of a triangle with a vertex of A(-6, 4) that has been dilated with a center of dilation at the origin so
the vertex of its image is A'(-24, 16)?

Answers

Answer:

Answer: The scale factor of the triangle is 4

Step-by-step explanation:

Solve the following equation for y: ax +by = c

Answers

Answer:

[tex]y = \frac{c-ax}{b}[/tex]

Step-by-step explanation:

ax + by = c

subtract ax from both sides

ax + by = c

-ax             -ax

=

by = c- ax

divide b on both sides

[tex]\frac{by}{b}[/tex] = [tex]\frac{c- ax}{b}[/tex]

=

[tex]y = \frac{c-ax}{b}[/tex]

slope of points (2,3) and (-4,12)​

Answers

Answer:

[tex]\huge\boxed{slope=-\dfrac{3}{2}}[/tex]

Step-by-step explanation:

The formula of a slope:

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

We have the points (2, 3) and (-4, 12).

Substitute:

[tex]m=\dfrac{12-3}{-4-2}=\dfrac{9}{-6}=-\dfrac{9:3}{6:3}=-\dfrac{3}{2}[/tex]

pls help, this is timed

Answers

Answer:

x/2 + 7 = 13 is the answer

Answer: C

Step-by-step explanation: He sold half of his comic, meaning dividing whatever he had by 2. Buying 7 more and it will equal 13.

[tex](\sqrt{2}-3i)(\sqrt{2}-5i)[/tex] plz simplify

Answers

2-3i square root of two -5i

Answer:

-5i

Step-by-step explanation:

what is the value of cos 120 degree

Answers

Step-by-step explanation:

√3 I think check the answer for sure

Answer:

-0.5

Step-by-step explanation:

edge

The robotics team needs to purchase $350 of new equipment. Each of the students on the team plans to fundraise and contribute equally to the purchase. Which expression represents the amount that each student needs to fundraise? Which expression represents the amount that each student needs to fundraise? Explain your thinking.​

Answers

Answer:

s = students, m = money they pay

S(M)=350

The expression that represents the amount that each student needs to fundraise is -  y = [tex]$\frac{350}{x}[/tex]

We have robotics team who needs to purchase $350 of new equipment.

We have to determine the expression which represents the amount that each student needs to fundraise.

In a class of 50 students, it was asked to collect a total of $3000 for NGO funding. Find the amount contributed by each student assuming they all pay the equal amount.

Assume the amount paid by each student be x. Then -

50x = 3000

x = $60

According to the question, we have -

Assume that the number of students in the robotics team are x.

Assume that the money contributed by each member is $y.

Then, the expression represents the amount that each student needs to fundraise is -

xy = 350

y = [tex]$\frac{350}{x}[/tex]

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Which is the correct classification of StartRoot 32 EndRoot? irrational number, nonrepeating decimal irrational number, terminating decimal rational number, nonrepeating decimal rational number, terminating decimal

Answers

Answer:

its A  i got you

Step-by-step explanation:

The correct classification of [tex]\sqrt{32}[/tex] is it is an irrational number.

What is a perfect square number?

A perfect square number when taken the square root of it results in an integer.

Numbers that are not perfect squares when taken the square root of it are irrational numbers.

One method of obtaining square roots for perfect squares is prime factorization.

We know if a number is not a perfect square it is an irrational number.

[tex]\sqrt{32}[/tex] can be written as [tex]\sqrt{2\times2\times2\times2\times2[/tex] which is [tex]2^2\sqrt{2}[/tex].

= [tex]4\sqrt{2}[/tex] and [tex]\sqrt{2}[/tex] is not a perfect square so it is an irrational number.

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what is the slope intercept form of the equation 15x-4y=32

Answers

Answer: y = 15/4 x - 8

Step-by-step explanation:

13) the
are
points A (9,0) B (9,6) c(-9,6),
D(-9,0) a vertices of
A)square B) rectangle C) rhombus
D)trapezium.
A
۔​

Answers

13) The points A (9,0), B (9,6), C(-9,6), D(-9,0) are the vertices of

A) square

B) rectangle

C) rhombus

D) trapezium.

۔

Find the midpoint of A(5,8) and B(-9,-6)

Answers

The midpoint is (-2,1)

(8.91 times 10 Superscript 2 Baseline) (3.3 times 10 Superscript 12 Baseline)

Answers

Answer:

  2.9403×10^15

Step-by-step explanation:

Your calculator can work this out for you.

  [tex](8.91\times10^2)(3.3\times10^{12})=(0.891\times10^3)(3.3\times10^{12})\\\\=(0.891\times3.3)(10^{3+12})=\boxed{2.9403\times10^{15}}[/tex]

__

The applicable rule of exponents is ...

  (10^a)(10^b) = 10^(a+b)

__

Additional comments

You can keep a product the same if you divide one factor by 10 and multiply the other factor by 10:

  8.91×10² = (8.91/10)(10×10²) = 0.891×10³

I like to "pre-scale" the numbers in a problem like this so that the product comes out in scientific notation with no adjustment needed. That is, the product of the two mantissas is a number between 1 and 10.

Here, you can tell the product of 8.91 and 3.3 will be more than 24, so scaling will be necessary. It is convenient to scale the larger mantissa to be less than 1 so the product comes out less than 10. That is why we made it 0.891×10³.

Answer:

 2.9403×10^15

Step-by-step explanation:

i took the unit test

Answer ASAP Which is a y-intercept of the continuous function in the table? (5, 0) (0, 1) (0, 5) (1, 0)

Answers

Answer:

(0, 5 )

Step-by-step explanation:

The y- intercept is where the function crosses the y- axis.

This occurs when x = 0 , thus

From the table when x = 0 , f(x) = 5 , thus

y- intercept is (0, 5 )

y- intercept is (0, 5 )

3y - 9/ < 27?

it’s algebra 2

Answers

Answer:

3y-9∫∠27

3y∫∠27-9

3y∫19-1

3y∫19-1

=6

Which rules of exponents will be used to evaluate this expression? Check all that apply. StartFraction left-brace (negative 8) Superscript 4 Baseline right-brace Superscript negative 5 Baseline Over (negative 8) Superscript 6 Baseline EndFraction

Answers

Answer:
X product of powers
Quotient of powers
Power of a power
X power of a product
Negative exponent
X zero exponent

Hope this helps ʕ•ᴥ•ʔ

Answer:

I thin its B

Step-by-step explanation:

I took the quiz. I hope this helps! sorry if it wrong :)

True or false: Most proofs in geometry are called direct proofs because theorems and postulates are used to prove a statement using a direct approach

Answers

Answer:

The statement is true

Step-by-step explanation:

Most proofs are direct proofs becaue theorums & postulates prove them true straightforwardly :)

Can someone help me??

Answers

The answer is
A.


Distribute 6 through the parentheses

Move constant to the right-hand side and change its sign

Calculate the difference 9-24= -15

Divide both sides of the inequality by 3

Hope this help

What does 8-2(y+4)=1/2(8y-12) equal?

Answers

y = 1

8-2y - 8 = 4y - 6

-2y = 4y - 6

-6y = -6

y = 1

Answer:

Step-by-step explanation:

8 - 2y - 8 = 4y - 6

-2y = 4y - 6

6y = -6

y = -1

If the diameter of a circle is 18 feet, which is closest to the circumference?
A. 56 52 feet
B. 9 feet
C. 573 feet
D. 28 26 feet

Answers

Answer:

A. 56 52 feet

Step-by-step explanation:

[tex]d = 18 \: ft \\ c = \pi \: d \\ c = 3.14 \times 18 \\ c = 56.52 \: ft[/tex]

The closest to the circumference is  56 52 feet.

It is required to find the circumference.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. The perimeter around the circle is known as the circumference.

Given:

Diameter of a circle is 18 feet.

Radius=18/2=9  feet.

We know that

circumference of the circle= 2πr

According to given question we have,

circumference of the circle= 2πr

circumference of the circle=2 π*9

circumference of the circle=56.54 feet.

Therefore, the closest to the circumference is  56 52 feet.

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Subtract 2/15 from 7/15

Answers

please give brainlist

in the way you wrote it the answer would be

1

_ ----

3

but but if you meant to do it backwards 7/15 and 2/15 the answer will 1

-----

3

hope this helped

6x+2y=12 ( solve for y )
How do I show my work on a piece of paper would help a lot :)

Answers

Answer:

y=6-3x

Step-by-step explanation:

factor out common terms 2(3x+y)=12divide both sides by 2

3x+y=[tex]\frac{12}{2}[/tex] simplify 3x+y=6 subtract 3 from both sides

y=6-3x

find the midpoint of H(6,7) I(-7,-6)

Answers

Step-by-step explanation:

um that's hard djrjrjrjjre

Answer:

(- [tex]\frac{1}{2}[/tex], [tex]\frac{1}{2}[/tex] )

Step-by-step explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

[ [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] ]

Here (x₁, y₁ ) = (6, 7) and (x₂, y₂ ) = (- 7, - 6) , thus

midpoint = ([tex]\frac{6-7}{2}[/tex] , [tex]\frac{7-6}{2}[/tex] ) = ( - [tex]\frac{1}{2}[/tex] , [tex]\frac{1}{2}[/tex] )

How much sales tax will be charged at Store B?

Answers

Answer: $94.50 is how much sales tax will be charged at store B asumming you are talking about the image attached to this answer, if not could you attach an image?

n/r = b/a solve for a

Answers

n/r = b/a

n*a = b*r

a = b*r/n

... Hope this will help...

KN bisects ZJKM. If mZNKJ = 7x-9 and
m2JKM = x + 3, find m2JKN.

Answers

Answer:

Step-by-step explanation:

7x - 9 = x + 3

6x - 9 = 3

6x = 12

x = 2

7(2) - 9 + 2 + 3

14 - 9 + 5

5 + 5 = 10

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