Which of the following are quadratic equations? `(i)3x^2-5x+9=x^2-7x+3` (ii) `x+1/x=1` (iii) `x^2-3x=0`

Answers

Answer 1

Option (i) , (ii) and (iii) all represents quadratic equations as all of them is of degree 2 and coefficient of degree 2 is non-zero.

What is quadratic equation?

Having the form a[tex]x^2[/tex] + bx + c = 0, quadratic equations are 2nd degree algebraic expressions. The meaning of the term "quad," is square, comes the word "quadratic." A quadratic equation is a "equation of degree 2," to put it another way.

Option i

3x^2-5x+9=x^2-7x+3

so the coefficent of degree 2 is 3-1 which is 2 which is non - zero value so this expression is a quadratic equation.

Option ii

x+ [tex]\frac{1}{x}[/tex] =1

=> [tex]x^2[/tex] -x +1=0

so the coefficent of degree 2 is 1 which is non - zero value so this expression is a quadratic equation.

Option iii

[tex]x^2[/tex] -3x=0

so the coefficent of degree 2 is 1 which is non - zero value so this expression is a quadratic equation.

so all the 3 option represents a quadratic equation.

To know more about quadratic equation click on below link:

https://brainly.com/question/30098550#

#SPJ4


Related Questions

The school sold 93% of the 400 tickets to the play. How many tickets were sold?
Please help

Answers

Answer:

372.

Step-by-step explanation:

just search up 93% of 400, neither of us are smart enough to figure it out ourselves

Answer: The answer would be 372

18:30 as a ratio simplified, please :))

Answers

the answer is 3:5

to find it, divide both sides of 18:30 by the GCF
the GCF of 18 and 30 is 6
so, 18/6=3 and 30/6=5

the simplified ratio is 3:5

please help me will mark brainleist (ik i spelled that wrong)​

Answers

Answer:

its way to blurry nobody can see

Answer:

x power 2 +2x-8 = - 6x power of 3

POSSIBLE POINTS 10
Using the following set of data, find the upper quartile.
17, 29, 32, 9, 30, 14, 8, 39, 11, 32, 23

Answers

Answer:

Minimum: 8 Q1: 14 Median: 17.5 Q3: 30 Maximum: 32

Step-by-step explanation:

8, 9, 11, 14, 17, 23, 29,30, 32, 32

7x — 3х – 4 = -1 + 21

Answers

Answer:

x = 6

Step-by-step explanation:

7x - 3x - 4 = -1 + 21

4x - 4 = 20

4x - 4 + 4 = 20 + 4

4x = 24

4x/4 = 24/4

x = 6

X=6 I believe hope this helps

Can Someone Answer this question??

The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
460, 451,442

Find the 37th term.

Answers

Answer:

37th term = -136

Step-by-step explanation:

Given:

Series;

460, 451 ,442

First term a = 460

Common difference D = 451 - 460 = -9

Find:

37th term

Computation:

37th term = a + 36D

37th term = 460 + 36(-9)

37th term = -136

 

Answer:

136

Step-by-step explanation:

Arithmetic Sequence.

Common Difference:

451−460=−9

442−451=−9

d=−9

Explicit Formula:

a{n}=a{1}+(n-1)d

a{37}=460+(36)(-9)

a{37}=136

=136

(Got it right on DeltaMath

5 times a number is at least 60.
Please help DUE TODAY

Answers

Answer:

5 times 12 = 60

Step-by-step explanation:

5 times 12 is at least 60

Someone please explain how to get the answers

Answers

Answer:

[tex] m\angle A =40\degree [/tex]

[tex] m\angle D =40\degree [/tex]

Step-by-step explanation:

By inscribed angle theorem:

[tex] m\angle A = \frac{1}{2} \times 80\degree [/tex]

[tex] m\angle A =40\degree [/tex]

[tex] m\angle D= \frac{1}{2} \times 80\degree [/tex]

[tex] m\angle D =40\degree [/tex]

Find the square root of the number. -4 square root -32 The square root is​

Answers

Answer:

-32 + 2i.....

yan po Ang sagot ko jan

Write an equation in slope-intercept form for the line that has a slope of 12 and passes through the point (3,20).

Answers

y=12x-16

that's the answer

Find the value of x.

Answers

Answer:

hi i dont know the ans but it have this app called photomath that will help u

Yea in Photomath just take a pick and it will tell u

Yuki went on a walk around her school. The school was mapped onto a grid where each unit represented one foot in real life. She started at the entrance, which was located at (50, 25). She walked to the library at (50, 100). Then she went to her math class which was located at (200, 100). She went to her locker at (200, 25) before she went back to where she started. How far did she walk in all?

Answers

Answer:

750

Step-by-step explanation:

50+25+50+100+200+100+200+25

que es la radicasion ​

Answers

Answer:

un lugar, típicamente uno que ha estado previamente deshabitado, donde la gente establece una comunidad.

Can someone tell me what this is really quick

Answers

Answer:

There were no more than 15 fruit snacks in the bag

Step-by-step explanation:

I hope this helps!

Please help me please with math!

Answers

Answer:   Slope = -32

Explanation:

The given equation is in y = mx+b form

m = -32 is the slope

b = -9/38 is the y intercept

Answer:

slope: -32

Step-by-step explanation:

Use the slope-intercept form to find the slope and y-intercept.

Slope:  − 32

y-intercept:  ( 0 , − 9/ 38 )

NOTE: Angles not necessarily drawn to scale.

Answers

Answer:

x = 40°

Step-by-step explanation:

angle A is a vertical angle with 60 so it's 60

60+80 = 140

180-140 = 40

Answer:

[tex]\boxed{\tt x=40^{\circ}}[/tex]

Step-by-step explanation:

∠x, ∠BAC, and ∠CAF form a straight line.

*Sum of angles that are formed on a straight line is equal to 180°.*

[tex]\tt \angle x+\angle BAC+\angle CAF=180^{\circ}[/tex]

[tex]\tt x+\angle BAC+\angle CAF=180^{\circ}[/tex]

[tex]\tt x+80^{\circ}+\angle 60^{\circ}=180^{\circ}[/tex]

Add, 80°+60°=140°

[tex]\tt x+140^{\circ}=180^{\circ}[/tex]

Subtract 140 from both sides:

[tex]\tt x+140^{\circ}-140^{\circ}=180^{\circ}-140^{\circ}[/tex]

[tex]\tt x=40^{\circ}[/tex]

_____________________________

hi please help i will mark brain list giving all my points

Answers

Answer:

B

Step-by-step explanation:

It looks like addition to me.

Answer:

Its B. Addition Property of Equality

Step-by-step explanation:

sum of 500 consecutive integers is 250 . what is the product same 500 numbers

Answers

Answer:

250 and 2 because i think 250 multiply by 2 is 500

The product of the 500 numbers is 0.

What are integers?

Integers are whole numbers. It is a number without a fraction or decimal component. Integers can either be positive, negative or zero.

Consecutive integers are whole numbers that follow each other on the number line. For example, 1, 2, 3, 4 .... are consecutive integers.

How to determine the product of the 500 consecutive integers

If the sum of the 500 consecutive integers is equal to 250, it means that the consecutive integers would include negative numbers, zero and positive numbers. If the consecutive integers include zero, the product of the consecutive integers would be equal to zero.

To learn more about products, please check: https://brainly.com/question/3385014

ZA=
Round your answer to the nearest hundredth.
A
?
5
B
3

Answers

sin = opposite / hypotenuse

Let x be the value of ∠A.

sin x = 3/5

x = sin^-1 (3/5)

x = 36.90 (nearest hundredth)

I need help with this math question ​

Answers

Answer:

16675514 Frog

Step-by-step explanation:

[tex]g(25)=14(1.75)^{25} =16675514[/tex]

help :> explain how you did it * quick*

Answers

Answer:

answer A

Step-by-step explanation:

Because this figure is dilated by the factor of 3 we can infer that the figure before dilation was 3 times bigger than the figure now.

so is AC is 5 now then AC before must have been 15

5*3=15

If the angle of A is 37 now then it must have been 111

37*3=111

I'm not 100% sure about this but I hope it helped :)

Answer:

Hey  you once commented on the question if you knew horsleyjaydyn and you said something about her being fake could tell me what you said she was old something don't remember

Step-by-step explanation:

So I've noticed a lot of people have been struggling on equations like these : 8 + ( 2 * 7 )
and I'll be explaining an easy way on how to solve it.

So basically 2 * 7 = 14, now we just have to add 8 + 14 which equals 22.
The parenthesis is the equation you have to solve to get your answer and then you just have to either add, subtract, multiply or divide to find your answer.

I hope this helped!

Answers

Answer:

Yes, it did. Thank you very much.

0.734862.. irrational or rational

Answers

Answer:

Irrational

Step-by-step explanation:

Noah works at a museum and monitors a fish tank. The tank currently has 140
gallons of water when Noah leaves to go home for the night. Overnight, the tank
starts to leak and water is draining at a constant rate of 2 gallons per hour. When
Noah returns to work the next day, he finds the tank after it had been leaking for 4
hours. Select all the statements that could represent the amount of water in the
tank when Noah return to work the next day.
a. 140 + -2
b. 140 + (-2)(4)
C. 140 + (2/4)
d. 140 + 8
e. 140 + -8
f. 138
g. 132

Answers

Answer:

B, E, G

Step-by-step explanation:

Which THREE statements describe how to find the product of 5×103?

Answers

Answer:

multiply 5×1,000 B multiply 5×10 three times and then add the products C move the decimal point in the number five, three place values to the left D move the decimal point in the number five, three place values to the right E move the digit 5, three place values by adding three zeroes to increase its value.

Answer:

Three statements to find 5x103=515

Step-by-step explanation:

5x(100+3)5x((25x4)+3)5x((50x2)+3)

What is the value of x

Answers

Answer:

the answer will be 10 aka number 1

Step-by-step explanation:

If the left side is 18 and the number above it is half that aka 9 then the other side is 10

pls help w this math question
thx !

Answers

It's d just d no exponents

what is 696969 time 1

Answers

Anything times 1 = the same number so 696969x1=696969

Answer:

696969

Step-by-step explanation:

Select the correct answer. What is the value of a in the function’s equation?

Answers

Answer:

[tex]a = -2[/tex]

Step-by-step explanation:

Given

The attached function (graph)

Required

Find a

The given function is quadratic and will be solved using:

[tex]y = ax^2 + bx + c[/tex]

From the attachment:

[tex](x,y) = (-3,4)[/tex]

[tex](x,y) = (-2,2)[/tex]

[tex](x,y) = (-4,2)[/tex]

Substitute these values in [tex]y = ax^2 + bx + c[/tex]

For: [tex](x,y) = (-3,4)[/tex]

[tex]4 = a(-3)^2 + b(-3) + c[/tex]

[tex]4 = 9a -3b + c[/tex]

For: [tex](x,y) = (-2,2)[/tex]

[tex]2 = a(-2)^2 + b(-2) + c[/tex]

[tex]2 = 4a -2b + c[/tex]

For: [tex](x,y) = (-4,2)[/tex]

[tex]2 = a(-4)^2 + b(-4) + c[/tex]

[tex]2 = 16a -4b + c[/tex]

So, we have:

[tex]4 = 9a -3b + c[/tex] --- (1)

[tex]2 = 4a -2b + c[/tex] ---- (2)

[tex]2 = 16a -4b + c[/tex] --- (3)

Make c the subject in (1)

[tex]c = 4 - 9a + 3b[/tex]

Substitute [tex]c = 4 - 9a + 3b[/tex] in (2) and (3)

[tex]2 = 4a -2b + c[/tex]

[tex]2 = 4a -2b + 4 - 9a + 3b[/tex]

Collect Like Terms

[tex]-4 + 2 = 4a - 9a-2b + 3b[/tex]

[tex]-2 = - 5a+b[/tex] --- (4)

[tex]2 = 16a -4b + c[/tex]

[tex]2 = 16a - 4b + 4 - 9a + 3b[/tex]

Collect Like Terms

[tex]2 -4 = 16a - 9a + 3b- 4b[/tex]

[tex]-2 = 7a -b[/tex] --- (5)

Add 4 and 5

[tex]-2 = - 5a+b[/tex]

[tex]-2 = 7a -b[/tex]

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

[tex]-2 - 2 = -5a + 7a +b - b[/tex]

[tex]-4 = 2a[/tex]

Divide through by 2

[tex]-2 = a[/tex]

[tex]a = -2[/tex]

Which operation should you perform first when you simplify the expression below?
85+ (9-25.5) ÷ 3
A: addition
B:subtraction
C:multiplication
D:division

Answers

Answer:

A pq eu já não sei mas vou na A! não sei falar inglês, meu irmão leu, mas acho que não leu direito, eu chuto na A

B : subtractions

because first of all is What is inside the arc
Other Questions
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