How do you solve quadratic equations?

Answers

Answer 1

Answer:

Completing the square

Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add. ...

Find the square root of both sides of the equation.

Solve the resulting equation.

Step-by-step explanation:

there

Answer 2

Answer: Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add.

Find the square root of both sides of the equation.

Solve the resulting equation.

Step-by-step explanation: Hope this helps!


Related Questions

Please help!! I need this answer please!! i will mark brainliest if correct thanks!!!

Answers

9514 1404 393

Answer:

  (0.5, -2.5)

Step-by-step explanation:

Each of the coordinates of B(1, -5) is multiplied by the scale factor, 0.5:

  B' = (0.5·1, 0.5·(-5)) = (0.5, -2.5)

The coordinates of B' are (0.5, -2.5).

Can someone please do these!!

Answers

For number 2. The answer is $6.49

Answer is attached below. Hope this helps.

How many 2/3 -cup servings are in 6 cups of cereal?

Answers

6/(2/3) = 6*(3/2), 6*3= 18, 18/2=9 servings

Answer:

Nine.

Step-by-step explanation:

What is the x-intercept of 4x+2y=6 (i just need the work)

Answers

Answer:

G

Step-by-step explanation:

Answer: h

Step-by-step explanation:

Help please!

These are Edward's calculations for his net worth: Net Worth = $400 - $500 = -$100. What does the negative net worth mean?

A)His liabilities are greater than his assets
B) His assets and liabilities are the same
C) His assets are greater than his liabilities
D) His assets and liabilities do not affect each other.

Answers

Answer:

A. His liabilities are greater than his assets.

Step-by-step explanation:

The two stadiums with the largest capacities are Marshfield Stadium and Bowden Stadium. Marshfield Stadium has a capacity of 7,675 more than Bowden. If the combined capacity for the two stadiums is​ 210,355, find the capacity for each stadium.

Answers

Answer: Capacity of Marshfield Stadium is 109,015 and capacity of Bowden is Bowden.

Step-by-step explanation:

Let x = Capacity of Marshfield Stadium.

y = Capacity of Bowden.

As per given, we have

x - y = 7,675               (i)

x+y  =  210,355               (ii)

2x = 218030    (iii)

[tex]\Rightarrow\ x= \dfrac{218030}{2}\\\\\Rightarrow\ x= 109015[/tex]

Put value of x in (i) , we get

109015 - y = 7675

⇒ y= 109015 - 7675

⇒ y= 101,340

Hence, capacity of Marshfield Stadium is 109,015 and capacity of Bowden is Bowden.

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

4th and 5th

Step-by-step explanation:

Theater A charges $5 for tickets and $2 per snack that is bought. Theater B
charges $4 for tickets and $3 per snack that is bought. What is the equation
of both theaters?
Ay2x + 4
y 3x+ 5
B. y = 4x + 2
y = 5x + 3
OC. y = 5x + 2
y 4x + 3
O D.y = 2x + 5
y = 3x + 4
Ed

Answers

Answer:

the answer is d.

Step-by-step explanation:

as soon as you go to the theater, you HAVE to pay $5 in theater a, with two dollars for ONE snack bought, and it says two dollars PER one snack bought. therefore if x was 2, so if someone wanted to buy 2 snacks, then you would multiply by 2 to get the total cost, or y, for the snacks. answer d is the only one that has the correct numbers in the correct places for theater a and b.

hope this helps!

help please!!!!!!!!!

Answers

Answer:

Angle 3= 37 degrees, Angle 2 = 143 degrees, Angle 4= 143 degrees

Step-by-step explanation:

Angle 3 is across from Angle 1 so they are equal to each other. Now to find Angles 2 and 4, cover angles 2 and 3 with your hand so you are just looking at 1 and 4, they are on a line. Lines are 180 degrees, so since angle 1 we know is 37 degrees, then 180-37= 143 degrees for angle 4. Now, 2 and 4 are opposites of each other, and share the same value of 143 (just like how we found angles 1 and 3 to be equal bc they are across from each other)

12 (10x + 15) – 32 = 2x + 6 + 3x

Answers

Answer:

x=154/115

Step-by-step explanation:

120x+180-32=2x+6+3x

120x-148=5x+6

115x=154

x=154/115

Help asap easy BRAINLlST
question In pic

Answers

Answer:

yes

Step-by-step explanation:

this is beacause you can predict what is next


I need help asap
Less then 5 minutes

Answers

Answer:

um well he would be well rested so he would score higher than others but I'm not sure on the exact number maybe around 90-100

T
V P
14x + 3
50°
5x + 7
U

Answers

Answer:

(x + 3)(x - 3) 3. 9(m + 4)(m - 4) 5. (u + 3). (u - 3)( u 2 + 9) 7. 5(2 r 2 - 3 n 2)(2 r 2 + 3 n 2) 9. (c + 1)(c - 1) ... -4, 6, -4i, 4i 13. f(x) = x 3 - 9 x 2 + 14x + 24. 15. f(x) = x ... 63a. (-0.3, -7.55). 50. 45. 40. 35. 30. 25. 20. 15. 10. 5 h. O 1 2 3 4 5 6 7 t. −1 ... △PMT. △SRQ. ∠TPS. ∠PSQ. Given. ∠MPT. ∠PMT ∠QRS ∠RSQ. ∠TVP. ∠SVQ.

If the cost of a barrel of oil is $50.00, how much is the cost of one gallon of that oil? (One barrel of fuel oil contains 42 gallons.)

Answers

$1.19 gotta make answer longer

Answer:

$1.20

Step-by-step explanation:

ba. Finish the statement: If two lines are parallel, then their slopes are?

Answers

Answer:

If two lines are parallel, then their slopes are equal.

I need help I need the answer

Answers

Answer:

t ≤ 12/23

Step-by-step explanation:

-48t + 2 ≤ -71t + 14

You would need to get all the numbers on one side and all the variables on the other side.

-48t + 2 -2 ≤ -71t + 14 -2 → -48t ≤ -71t + 12

-48t + 71t ≤ -71t + 71t + 12 → 23t ≤ 12

23t ÷ 23 ≤ 12 ÷ 23 → t ≤ 12/23

pls help and thx
WILL GIVE BRAINLIEST

Answers

Answer:

0

-20

-7

Step-by-step explanation:

0 x any number = 0

4(-5) = -20

126/(-18) = -7

Answer:

1. 0

2. -20

3. -7

Step-by-step explanation:

1. 0 times anything is equal to nothing times something.

So, the first one is 0.

2. For 4 x -5, you can just do 4 x 5 x -1, which equals 20 x -1, whixh equals -20.

3. Remember, a negative times a negative = a positive. So, the number must be negative. Just do 126 / 18 x -1, which equals -7.

Hope this helps!!

Alamo Cola manufactures a soft drink made with 2.5% peach juice concentrate. What is this percent expressed as a fraction and decimal?

A) 1/4 and 0.025

B) 1/4 and 0.0025

C) 1/40 and 0.025

D) 1/400 and 0.0025

Answers

i don't know sorry if its wrong please correct me, it looks like c

Plz help! Will give brainliest!

Answers

That would be A hope this Helps :)

Answer:

D

Step-by-step explanation:

To divide the 2 fractions

• leave the first fraction

• change division to multiplication

• turn the second fraction upside down

[tex]\frac{11}{12}[/tex] × [tex]\frac{7}{5}[/tex]

= [tex]\frac{11(7)}{12(5)}[/tex]

= [tex]\frac{77}{60}[/tex]

= 1 [tex]\frac{17}{60}[/tex] → D

(Can you help me with this math problem)?
Triangles QRS and Triangles QTV are similar; Which equation must be true?

A) T, V/ R, S = T, Q /R, Q
B) T, Q / V, Q = T, V / T, R
C) V, Q / S, Q = R, Q / R, S
D) T, V / V, Q = R, S / R, Q

Answers

Answer:

Um im not sure

Step-by-step explanation:

Its probly A if im doing it write

What is the y-intercept of a line that passes through the points (5, -6.5) and (-12, 2)?

Answers

Answer:

y-intercept = -4

Step-by-step explanation:

equation of a line: y=mx+b

two points given are (5, -6.5) and (-12, 2)

first we can easily find value of m or the slope, by using the slope formula. the value of m=-0.5.

formua to find m: [tex]\frac{2-(-6.5)}{-12-5}[/tex]= -0.5

to find the value of b (the y-intercept), we need to plug in a y and x value, we are given 2 ordered pairs, you can use either one and plug x-value in for x and the y-value in for y.

if i plug in (5, -6.5), my equation looks like this: -6.5=5(-0.5)+b

then you just solve for b and it turns out to be -4.

The solution is -4

The y intercept of the line passing through the points

P ( 5 , -6.5 ) and Q ( -12 , 2 ) is -4

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

Let the first point be P = P ( 5 , -6.5 )

Let the second point be Q = Q ( -12 , 2 )

Now , the slope of the line between 2 point is given by

Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 2 + 6.5 ) / ( -12 - 5 )

Slope m = - 8.5 / -17

Slope m = -1/2

Slope m = -0.5

Now , the equation of line is given as

y - y₁ = m ( x - x₁ )

Substituting the values in the equation , we get

y - ( -6.5 ) = -0.5 ( x - 5 )

On simplifying the equation , we get

y + 6.5 = -0.5x + 2.5

Subtracting 6.5 on both sides of the equation , we get

y = -0.5x - 4

The equation is of the form y = mx + b where m is the slope and b is the y-intercept

Therefore , the y intercept of the line is -4

Hence , the y intercept of the line A is -4

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ2

Find the missing values in the ratio table.
for every 81 girls, there are 72 boys

Answers

Answer:

its d

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

We know that for every 81 girls, there are 72 boys so how do u get 81? You'd have to multpify 9x9 = 81 and 8x8= 72 so the ratio is 8:9

Factor the following expression: x^2+3x

Answers

Step-by-step explanation:

Hey there!

Given;

[tex] = {x}^{2} + 3x[/tex]

~ Take "X" common.

=[tex]x(x + 3)[/tex]

Therefore, "x" and "x+3" are the factors if the expression.

Hope it helps...

1. Write the equation of the circle given the following information. *
Center (-8,-9) and a radius r= 10

Answers

Answer:

(x+8)² + (y+9)² = 100

Step-by-step explanation:

The equation for a circle on a graph is

(x - a)² + (y - b)² = r²

r represents the radius

a represents the x displacement of the circle's center.

b represents the y displacement of the circle's center.

I need help on this problem!

Answers

Answer:

Blank 1: 1

Blank 2: -19

Blank 3: 4

Blank 4: 96

Step-by-step explanation:

-1+4=3

3/3=1

3(-5)-4=-19

8+4=12

12/3=4

3(100)-4=96

Mr. Gage wants to buy a new car A but is considering used Car B. Car A costs $2,500 less than twice as much as car B. If car A costs $20,800, what is the cost of car B?

Answers

1250 is the answer simple math.
20,800 divided by 2 is 10,400.
Then 10,400 - 2,500 is 7,900, the correct answer is 7,900

SOMEONE PLZ HELP ME!!!!!!


Anja claims that Thai challenge can be solved with a single rotation.

Braden says it can be solved with a single reflection

Who is right?
a) Anja
b) Braden
c) Both
d) Neither

Explain.


Plz help!!! ANSWER IF YOU KNOW LOTS OF POINTS!!!!

Answers

Answer:

Anja is correct.

Step-by-step explanation:

If you rotate the figure to the left, around the correct vertex, you will land on the after image.

Gail has $100 and wants to have her hair styled for the prom. The salon charges $56 for a hair styling. Gail plans to leave a 20% tip. In dollars, how much money will she have left after she pays the hair stylist?

Answers

Answer: She has left $32.8 after she pays the hair stylist.

Step-by-step explanation:

Money Gali has = $100

Charge per hair style = $56

Tip percent = 20%

Total charge for hair styling = Charge per hair style + Tip

= $ (56+ 20% of 56)

= $ (56+0.2 x 56)

= $ (56+11.2)

= $ 67.2

Money left = Money Gali has - Total charge for hair styling  

= $ (100-67.2)

= $ 32.8

Hence, she has left $32.8 after she pays the hair stylist.

Which expression is equivalent to 12a + 8?
0 4(3a + 2)
04(3a + 8)
06(6a + 2)
06(6a + 8)

PLEASE help me thanks...

Answers

I’m pretty sure it’s the first one. 4(3a + 2)


4 x 3a = 12a
4 x 2 = 8

Which ordered pair is a solution for the system of equations?
{ 3x - 5y = 15 }
{ 12x - y= -4 }

a. (0, 3)
b. (2,8)
c. (-6, - 11)
d. (-5, -6)

Answers

Answer:

I would not want you to get the wrong answer but.

Other Questions
I'm not good at determining what is happening in a volleyball game. So if you can understand what I'm describing in this essay, the information I'm saying is relevant, and you actually understand how volleyball works, can you please tell me if this is good? Any negative comments are helpful.The team's playing in this video are presented as Baylor Bears and Texas Longhorns. Baylor is #3 with a win to loss ratio of 11-2 for this season while Taylor is #1 with their unbeaten 11-0. Texas hit 294 as a team while Baylor hit 233, Texas Longhorns so far is the best hitting team efficiency wise in the country with a score of .359. Baylor took the lead in the first two sets when they made their first o2 comeback ever since Nov 1st of 2017. Hannah Sedwick, #14 Setter, in Baylor to me, seems like a really focused player, they mentioned how she was out for most of the season due to a fracture in her leg but yet she seems so active and awake, all of the players put in an effort but Hannah actually commits. When blocking the ball, her entire body became stiff and she carried the win for her team. On the other team there's Yossiana Pressley, #32 Outside Hitter, on the Baylor Bears who had 29 kills in the first part, and I have to say she completely dominated Baylor's with her spikes. Nilani Iosia, #12 Libero, in the Texas Longhorn scored 15 digs and an excellent passing percentage while Lauren Harrison, #31 Outside Hitter, Baylor Bears was the second leading attacker in the first part. Another notable player is Jhenna Gabriel, #2 setter, in Texas Longhorns who is the reigning national player of the big 12 player of the year.The Texas Longhorns came through this game with a ratio of 3-2 remaining unbeaten for the 12th time in a row. In one play I remember Butler barely hit the ball over the net and scored. It wasn't such a critical play but it had strategy and reasoning behind it. While Baylor prepared for the worst by upgrading the offense, they left their defense bare. That's why I think it was smart how Butler quickly noticed that and surprised them. This team had a quick dynamic where they would hit the ball before the blockers could completely cover over the net. Somewhere in the beginning, I immediately had a feeling Taylors had something the Bears didnt which helped them stay unbeaten. Id say its how they made sure to make their hits clear so that it can go through the blockers, and they were very efficient with passing the ball to their hitters. They shouldve had a clearer touch with the ball as well even if they won, it looked like both teams couldnt block the ball most of the time.The losing team, Baylor Bears, was honestly close to Texas's score. I couldn't stop focusing on Yossiana Pressley in Baylor, she had perfect momentum and sharp reflexes. Not just because of her kills but I'd say she was the MVP player of this game. The team was always so supportive as well especially whenever a small mistake occurred like a foul for going over the line on a serve. I have to admit, most of their sets were average, and not to mention how their hitters would constantly hit out of the court. It seemed as if they were trying to get it to hit the net so Taylor's would have more difficulty blocking it, if that's the case then it's a very smart move, but otherwise, if they just happened to be lucky then I'd consider it a miracle. This team could always track the ball but when it came to controlling the ball, they were late and had bad momentum. The sad part is, the Baylor Bears are such a good team, I personally liked them more in the beginning where I saw more action, but whenever it came down to the ball constantly being passed back and forth it seemed as if they lost energy which to me, ultimately led to the downfall of their team. Thank you :) someone help me answer this please i will mark brainliest x What's is a prepared piano?Please hurryyyy What is one way the Progressive Era reform outlined in this diagram has affectedU.S. politics? A. More women have been elected to Congress.B. Citizens have a more direct influence on lawmaking.C. Corrupt officials can be removed from office.D. Primary elections are prohibited in several states. Conjugate the verbs (in parenthesis) based on the subject or subject pronoun.You have multiple attempts to get a perfect score. 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When does puberty occur? What causes the changes that occur during puberty? The boy said he hadnt stolen the car. He just wanted to go j_ _ _ _d_ _ _. Help me please..Suppose a car is moving in a straight line and steadily increases itsspeed. It goes from 0 miles/hour to 15 miles/hour the first second and 15miles/hour to 30 miles/hour the next second. What is the acceleration? A)10 miles/hour/second B) 15 miles/hour/second C) 20 miles/hour/second D)30 miles/hour/second Help plz! Will give brainliest! Which function displays this end behavior? As xapproaches negative infinity, y approaches positive infinity. As xapproaches positive infinity, yapproaches negative infinity.A.) y = (x+ 2)^3 -9B.) y = -2x^3-1C.) y = -3x^3 + 4D.) y = 3(x-1)^2 HURRY 100 POINTS! (This semester weve spent quite a bit of time thinking about and discussing how and why narrative writing can play an integral part of our own lives. 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